Chapter 3

A Few Days Later.

Issei then looked at the map of Kuoh Town before him and saw the location of the Dungeon of Gluttony. Issei's information on the slimes was limited since he only saw real slime in the anime and games he played as a kid.

"From what I know about slimes, they aren't smart but dangerous when a skilled user knows how to use them properly. Slimes can also come in different types due to the slimes being able to absorb materials and make them into new ones. If we can gather some information on what kind of slimes this Dungeon has, then perhaps we can try to recruit them instead of killing him." Issei said as he then canceled his map of the town before looking at Rin.

"Rin!" Issei shouted as Rin turned to her Master as she nodded.

"Yes, master?"

"I'll be heading out to the Dungeon of Gluttony. I'll be going there alone. Can I trust you to keep an eye on the base while I'm out?" Issei asked as Rin saluted him and nodded.

"Yes, Master! I shall make sure that the Dungeon is protected while you are out, but wouldn't it be safer if you had a guardian with you?" Rin asked as Issei pondered who to bring before nodding.

"You do make a point, but I don't want to draw too much attention," Issei said as he thought about who to bring along until an idea came to his mind. "And I think I know just who to bring."

"Thank you for letting me join you on this wonderful expedition, Master," Rize said as she was attached to her Master's arm while Jako didn't mind their fellow demon comrade snuggling up to their Master. Issei figured that when dealing with slimes, Rize and Jako would be the best choices since Rize can easily consume them while Jako is a fellow slime as well, so they would be able to deal with them, especially since their sword was made to kill slimes.

"Indeed. I'm grateful, Master, since it's nice to be walking with you for something else besides a mission due to those annoying harpies bothering us." Jako said as they were glad the women from the school weren't bothering them. "Oh, by the way, when will summer break begin?"

"Oh, summer will begin in a week. Due to me being able to pass my classes, I was able to skip the finals of the school year, to my teacher's shock." Issei said as he recalled the memory of his teacher being shocked to see a change in Issei before they assumed he was a fake until Issei revealed he was himself.

"Now that I can easily not worry about the finals, we can continue preparing for the battle with the Dungeon of Gluttony, but we don't know what they're capable of, which is why I want to prepare what we'll have to face," Issei said as they headed to their destination.

Kuoh Towns Lake. It was a large lake in the forest area that was near the park. It was an amazing place for a couple or a small family to enjoy a picnic on a summer day. However, people avoid the lake nowadays because there are some strange creatures in the water.

If Issei had heard this before knowing the supernatural world, then he wouldn't have thought about the possibility of a mysterious creature in the water. Now that Issei knew of the supernatural world, he believed the rumors about the lake.

Issei, Jako, and Rize then found themselves at the lake, where Issei definitely sensed something was in the lake.

"I can sense the dungeon entrance at the bottom of the lake. That explains why people thought they saw something in the water. The slimes probably scared the people away to make sure they avoided the water so the slimes could rest in peace." Issei said as Rize looked at the lake and began to feel thirsty. She licked her lips before taking out a straw from her storage portal. She then extended the straw into the water as she then began to drink the water.

Now, most people would think that's crazy, but Issei knew that Rize was the Demon of Gluttony due to her bottomless pit of a stomach. When Issei made Rize, he had planned to make her a deadly adversary to those with powerful magic and such, so he made sure that Rize would be able to consume any magic attack and even absorb the magic from her enemies. She could even consume large bodies of water in less than one minute to clear a path for her comrades. Rize was a deadly demon that could even consume people to take upon their form to hide in plain sight, but Rize didn't seem to like the taste of human flesh unless the people had a certain smell to them.

Rize hummed in joy as she took her straw out of her mouth and smiled at the drink she had as Issei smirked at the now near-empty lake. Jako whistled in amazement as they still couldn't believe Rize drank so much water and still kept her figure.

"It's astounding how you stay so thin despite drinking so much water," Jako said as Rize giggled at the shocked face on the slime.

"Well, it's thanks to Master granting me such an amazing figure and a bottomless black hole of a stomach that I can be of great assistance to him. Plus, I couldn't exactly be called Gluttony to enjoy such wonderful food of different cultures." Rize said as she imagined the delicious foods that made her mouth water with excitement.

Issei knew when Rize was like this, he had to snap her out of her daydream. "Wake up, Rize. We're on a mission."

Rize smacked her face as she nodded to her Master. "Of course, Master. Apologies, but I couldn't help myself."

Issei didn't mind as he patted her head before the trio headed to the bottom of the lake to see that there was a small cave with an entrance.

You are near the Dungeon of Gluttony. Would you like to enter it? Know that if you choose to enter, then the Dungeon will see you as a threat and try to stop you.

Issei looked at Jako and Rize, who nodded with confidence in their Master before he selected to enter the Dungeon as the entrance expanded to have all three enter the Dungeon.

The trio entered the Dungeon and made their way through as the entrance closed off behind them, making Jako sigh at their only exit now gone.

"Well, no point turning back now," Jako said as Issei looked at the dungeon stats that appeared in front of him.

Dungeon of Gluttony

Floors: Ten.

Rank: 2

Quest: Defeat the Dungeon Master of Gluttony and claim the Dungeon to expand your Dungeon Domain.

"Hm. Ten floors look normal for a Rank Two dungeon, but that's a surprise since mine is a Rank Three while this Dungeon is a Rank Lower mine. Is it because the slimes don't fight as much?" Issei asked himself as he and the other two headed to the first floor to see that there were crimson red slimes with orange cores within them.

Issei looked at them and recognized them as a Fire Slime from a game he once played known as Slime Farmer. In fact, when Issei looked at their stats, thanks to his Scan spell, he was able to see that it is similar to the ones from that game.

Fire Slime

Rank 1

Fire Slimes live off ash and wood. They also enjoy dry areas where there is little to no humidity.

Skills:

Flame Breath: Allows the user to release a small stream of fire.

Fire Stomach: Allows the user to burn anything they consume for easy consumption.

Unity: Allows all Rank 1 slimes to combine to become a higher-ranked slime. Higher ranks depend on the number of slimes they combine with.

"Take them out with water magic before they have a chance!" Issei said as he pointed a finger pistol at the fire slimes before he muttered.

"Water Pressure," Issei said as a small concentrated bullet of water formed at the tip of his finger before it launched through three slimes. Their cores were severely damaged before they were reduced to red goo.

Jako smiled as they used their sword and swung it at the slimes. Many of the Fire Slimes tried to burn the sword, but the sword seemed to cut right through the flames, and then the slimes before Rize smiled at the cores of said slimes and consumed them.

"Mm. It tastes a bit sour but bitter at the same time. Not bad, and I will say that it's very satisfying." Rize said as she caught another slime and drank the slime's liquid body, leaving the core alone and intact.

This act carried on as the trio dealt with the remaining slimes before Issei collected all the slime cores, as they then vanished when Issei was offered to sell said cores.

"This is way too easy," Issei said as he looked at the new amount of money he had before seeing how easily the slimes were dealt with.

"Well, it does make sense since we have Rize, who literally consumes anything without issues, myself, who can slice through their liquid bodies thanks to my sword, and their attacks don't really harm me since I'm a slime as well. Now for you, Master, your magic is incredibly powerful since you can make any spell and never run out of magic." Jako said as Issei understood their reasoning but was still thinking that this boss had some trick up his sleeves since there was no way he would leave his team this weak.

They then proceeded as they entered the second floor, where it was beautiful scenery as there was a lake in front of them.

Issei felt a sense of calm as he enjoyed the scenery and the air on the second floor before it was interrupted by a massive blob of blue slime emerging from the lake that growled and then roared at the trio.

King Water Slime

Rank 2

This Water Slime is a fusion of many Rank 1 Water Slimes and is capable of leading lower-ranked demons.

Skills:

Leadership: Allows the user to control weaker and lower-ranked creatures of the same species.

Water Cannon: A powerful, concentrated stream of water from its body.

Liquid Body: Makes physical attacks weaker against it.

Issei smirked as he looked at Rize. "Hey, Rize. Are you thirsty after eating those Fire Slimes?" Issei asked as Rize grinned at the massive beast before licking her lips. Her tongue became long due to her appetite being nowhere near satisfied as she looked at her meal.

"Oh yes, Master! I'm so thirsty." Rize said as she dashed towards King Slime, and she then dove straight into the lake, making the slime think she was crazy while Jako and Issei decided to relax and let Rize deal with this one.

The King Slime then tried to assert dominance over Jako, but the Demon Slime smiled as it waved a hand at the King Slime before flipping it off.

"Fuck you, Fake King. I got a real King right here, and he doesn't need to fuse with others to compensate for his weaknesses." Jako said as the King Slime felt offended by the Demon Slime's words before the King felt weaker and weaker as the water in the lake began to turn into a whirlpool as the water headed to the center, where Rize was standing while drinking all of the water.

The King Slime tried to escape with a few tentacles, but Issei's Wind magic sliced them off. He smiled at the King Slime as it began to get closer and closer to Rize's body in the center of the lake.

The King Slime tried to blast Issei into the water, but Issei merely smiled at this as he let it hit his body. Some may think it's crazy, but Issei came prepared for the Dungeon as he had the Whirlwind enchantment protecting him from the attack before. Issei smiled as he then snapped his fingers.

"Dance of Blades," Issei said as blades of wind sliced the King Slime. Issei saw the core get chipped, making the slime shiver in pain as it reached Rize, whose eyes smiled at her prize before it vanished into the mouth of the Demon of Gluttony.

Rize swallowed the slime as she smiled in contentment while looking at her new bust size since it had grown a bit from the water she drank before sighing in relief as she made her chest shrink and moved the water to her rear.

"Mmm. Now, that was a very satisfying drink." Rize said as she walked towards her Master and smiled at his gaze on her rear before whispering into his ear some very sexy things to do in the sack, which made Issei blush as he pondered about the offer but decided to push it in the back for later.

Rize giggled as she nodded and wrapped her arms around his neck as she held him close. At the same time, Jako chuckled at the affectionate demon since they knew that Rize was a very sexy demon who wanted to get in the sheets with their Master to eat his virginity and essence.

Rize may have been made the Demon of Gluttony, but she also enjoyed being close to her Master, who was able to fulfill her normal appetite. Her sexual appetite, on the other hand, was on overdrive since Rize wanted nothing more than to be pounded by her Master to satisfy her desires and to replace the Fallen Angel that hurt their Master's heart and mind.

Issei may look calm and that he's improved, but a small part of him still has fear for what happened to him, and who could blame him? He had opened himself up to someone who he thought would accept him and only learn she never loved him. It makes sense that Issei would have trouble with matters of the heart.

Luckily, Asmodeus was also a licensed therapist who talked with their Master to help him with his heart and little by little, he's opening up to letting go of his past and moving on.

Who would've thought a Succubus would've been a good therapist to help others with matters of the heart?

Issei, Jako, and Rize continued going through the third, fourth, and fifth floors fairly quickly due to the three floors consisting of Earth, Crystal, and Metal Slimes, who could create strong earth-based barriers and blast rocks at their enemies. At the same time, the Metal Slime specializes in launching themselves as a powerful metal bullet.

Issei was very impressed by the Metal Slimes' stronger durability than the Earth Slimes, so he used fire magic to weaken the slimes before using a prison spell to capture all of them. Issei was thinking he could have the slimes become powerful allies for their Dungeon.

The Earth slimes were much easier to deal with since they were weak to strong physical attacks and air attacks that could slice through their cores due to Jako learning that the Earth Slimes have a strong outer shell to keep their core safe like a golem. Still, the slimes cores are more fragile due to the slimes using so much magic to make their defenses stronger.

Crystal Slimes were amusing since they bent light to create powerful, concentrated beams of light that blind or burn the enemy. It wasn't Holy Light, so it didn't harm Jako and Rize much but annoyed them, so it was up to Issei to use his new Sonic attacks. Issei had been enjoying having an infinite supply of magic, so he was curious about what kind of spells he could make. So, he used his knowledge of anime and manga to make special spells to deal with almost any threat he came across.

Issei knew that the Fallen, Devils, and Angels were just the beginning of the supernatural world. Issei knew that the supernatural world consisted of many more creatures, even Gods who were far more powerful than him, even with his infinite magic, so Issei was making sure he was thinking of possibilities of how to protect not just himself but his Dungeon and his family from the supernatural forces. He would be damned if he lost his life again because of his slothfulness or his lust being used against him.

The sixth floor was an interesting one that looked like a humanoid slime.

It seemed to act like a normal slime, but this slime looked like a human with translucent, gel-like skin that shimmers in various colors. This human slime reminded Issei of a Slime from a show he watched since Slimes can change their appearance at will, often taking on human-like features but with a distinct gooey texture.

Rize was curious at this as the slime human sensed them and began to spray acid at them to keep them at bay.

"Scatter!" Issei yelled as they all dodged the acid spray. The slime human roared in rage before its fists became spiky maces as it tried to hit them.

Rize smiled at the slime as it tried to hit her while Jako was able to avoid the punches with their speed before using the sword to slice off an arm that made the slime roar in pain. Issei then made a finger pistol and aimed it at the slime human.

"Sorry, but I'll have to get rid of you," Issei said as the tip of his finger pistol ignited with a small flame at the end.

"Bang," Issei said as he smiled as the flames burned the slime human, causing it to explode and destroying its core as well as evaporating its body.

Issei was a bit concerned since this version of slime wasn't like one he saw in a game, and it seemed more human than the other slimes on the previous floors.

"Aika said that the Dungeon Master was a human once, but why was there another humanoid slime creature here?" Rize asked as Jako called the two over to them.

"Hey guys! I found something!" Jako shouted as Issei and Rize headed towards them to see that the next floor was a massive lab of sorts with many tubes surrounding them. Each one of them had a gel-like substance inside of them with different colors.

"What the hell happened here?" Issei asked himself as the trio looked around and saw that all of them seemed to have a human-like shape before Rize looked at a table and saw a journal of sorts.

"Issei! Jako! I think I found something!" Rize shouted as the duo rushed towards her before she showed them the journal. "I think this will explain everything to us."

The trio opened the book as the first chapter was read aloud.

Day 1

"I've been trying to find a way to expand a human's life due to modern medicine doing nothing to help my little girl. My daughter cannot move her legs or arms without someone to carry her. Prosthetics are of no use due to how she can't use her limbs, which is why I decided to go into the alchemy branch of magic to try and find a way to not only save my daughter but also give her a new way to live as a normal girl."

"So he was trying to help his girl be able to live as a person? Wow." Jako said as Issei looked at the tubes and saw that each of them had the same name.

"Each of them seems to be a different slime, but they share the same name," Issei said as he pointed to the labels on all of them, with their names being Eris.

Rize and Jako saw the same thing in all of the slime tubes as they each seemed to be slime with the same human appearance before Rize flipped a couple more pages.

"It says here that the man tried many different alchemical techniques to regrow Eris's arms and legs, but the illness that caused her limbs to stop working wasn't able to be treated. That is why he suggested a slime body that contains not just her intelligence but also her physical form so Eris can enjoy being alive again." Rize said as Issei was surprised by this before asking her.

"But why not a Homunculus? Wouldn't that have been a more permanent solution? Or what about a copy of her body that didn't have the disease?" Issei asked as Rize read more of the journal before she replied to him.

"It says he tried, but the supplies to make a Homunculus body were not easy to find. The Slime body was the best alternative for him." Rize said as Issei sighed before seeing how they were all not functioning as a result of them not having consciousness.

"But if these are the Slime bodies he made, how come he hasn't placed Eris in one of them?" Issei asked as Jako narrowed their eyes at them as well before speaking to their Master.

"It's because these slimes aren't meant to be Eris's body. They're meant to be the foot soldiers like the one we just faced." Jako said as Issei was shocked at this before the trio decided to continue reading the journal.

Day 50.

"I learned that the only way to make sure my daughter's new body would be able to adapt to any change in her environment was to fuse different slimes to ensure that the weather and the like wouldn't harm Eris's body. That is why I sought out a powerful witch who specializes in human experimentation and is able to bring out the true power of humanity."

Issei was shocked at this as the trio looked at the slime bodies one last time before Issei pondered something.

"If these slimes are without a brain, then perhaps we can help them," Issei said as he walked over to a tube that had a slime that was a forest green color and pulled a lever that was next to the container.

"Wait! What are you doing, Master?!" Jako shouted as the liquid was drained from the container before the slime was released from the tube. Issei caught the slime and placed it on a table before sending a bit of magic into its body.

"With this contract, you are now mine," Issei said as he saw a familiar seal appear on the slime's chest. Before it vanished, the slime slowly opened its eyes and looked at Issei with a curious look.

The slime tilted her head slightly as she looked at Issei and poked his chest a bit before asking.

"M-Master?" She asked while pointing to him as Issei nodded.

"Yes. I am your Master. I freed you from the containment tube you were in. Do you have a name?" Issei asked as the slime pondered the question, but Issei could tell that she was easily confused due to her head being empty.

"Uh..."

"Would you like a name?" Issei asked as the slime smiled and nodded her head so hard the Dungeon Master was surprised the slime's head didn't come off.

"Okay then. How about Aurora?" Issei asked as the newly named slime nodded and cheered before hugging Issei and rubbing her gel body against him.

This view amused Jako since they expected their Master to help the slimes that were left alone, while Rize couldn't help but ponder how the slime would taste since she was feeling a bit peckish.

"Are the others like you, Aurora?" Issei asked as Aurora looked at the others with a sad smile and nodded.

"Yes. Scary man made us. He said he was trying to fuse us all to create 'the perfect body for her,' but the witch lied to him." Aurora said as she clenched her fist and placed her head on the tube before looking at her slime sisters with her eyes revealing she was connected to them.

"I feel their emotions. They're scared. They're sad. They're empty like me." Aurora said as Issei then asked her.

"Do...Do they wish to be free?" Issei asked as Aurora looked at him and asked.

"Y-You'll really set them free?"

"Of course. My Dungeon does have a lot of space for you and your sisters, or if you want to be free, that's okay too. You've been here for so long and probably never saw the outside of the lake, so why don't I take you and the others out of here?" Issei asked as Aurora seemed to be amazed by the offer before feeling the others, who began to wake up from their connection to Aurora.

"My sisters and I agree. We wish to be free." Aurora said as Issei nodded before looking at Jako, who smiled at their Master before pulling a lever.

"You got it, Master," Jako said as they saw the many slimes being released from their containment chambers until they approached Aurora and looked at Issei before bowing to him.

"We live to serve you. Our wonderful master." The slimes resonated as Issei counted a total of a hundred of them.

Ten different types of slimes:

Fire Slime

Water Slime

Plant Slime

Gravity Slimes

Poison Slimes

Light Slimes

Shadow Slimes

Wind Slime

Normal Slimes

Earth Slime

"Woah. It's amazing how he had so many different slimes and never even tried to release them." Issei said as he cast a massive familiar seal on the hundred slimes. They cheered for not only being free but also having a master who seemed to care for them.

Jako smirked as they turned to Issei and asked. "So you like Slime girls, huh master?"

"Oh, shut it, Jako. Need I remind you that your one as well?" Issei asked as Jako giggled and nodded.

"Yes, but you seem to have a lot of slimes now, my silly master," Jako said as they placed their body on his back. Issei tried to shake Jako off of him, but the Demon Slime seemed to enjoy teasing him until Rize pulled Jako off her Master.

"Thank you, Rize," Issei said as Rize smiled in reply until Issei looked at the slimes and pondered about an idea.

"Is it possible for you all to combine into a King or Queen Slime like the others we saw?" Issei asked as the slimes nodded before Aurora fused with the other nine Plant Slimes and became a Plant Slime Queen as the others did the same thing until now. Ten Slime Queens stood before their Master.

"Woah. Is it so wrong that I'm a little turned on by them?" Jako asked as Rize smacked the back of Jako's head with a signature Gibbs head slap.

"Ow!"

"Get your mind out of the gutter," Rize said before speaking to Issei. "This is nice and all. How are we supposed to get to the Dungeon Master?"

"Oh, we can help with that. The Dungeon Master had two more floors before the throne room. They were made specifically for the scary witch who was working with the Dungeon Master, but a few nights ago, there was a lot of shaking and screaming. We didn't know what was happening since we weren't freed, but the scary witch left and never returned." Aurora explained as Issei was shocked by this before asking.

"And you saw this?" Issei asked before Aurora shook her head.

"No. The Original One did."

This name confused the trio for a moment until Issei asked. "When you say original one, do you mean Eris?"

Aurora nodded as she and the other Queen Slimes led the trio to the next floor to see that there was blood everywhere, with shattered containers and broken glass scattered around the floors.

"Woah. This place looks like a fight destroyed it." Jako said as they looked at the blood on the table before seeing a cup of coffee and stuck a finger in it.

"Woah! This cup is cold!" Jako said as they looked at the blood trail and followed it before calling out to Issei.

"Hey! It looks like whoever was wounded headed to the next floor!" Jako called out as Issei nodded and followed Jako while taking in observations of what happened in the area before they went to the ninth floor, where a collapsed body was found in the middle of the floor. Jako was hunched over the body and gasped.

"This man is Eris's father." Jako said as Issei asked.

"How do you know that Jako?" Issei asked as Jako replied by turning the body over and revealing a man's face with sharp teeth, but in his front coat pocket was a picture of a girl, and on the back of it was a name.

Eris.

Issei was shocked as Rize saw a blinking red light before tapping the button. Once it was tapped, a message began to fill the air.

"Eris. I'm sorry, but I've made a grave mistake thinking that witch would've helped me, but in truth, she was only using me to fund her own sick and twisted experiments!" A bang was heard, as well as a scream, before the man continued speaking. "To whoever finds this message, be wary of the witch! Do not trust her or believe what she says!"

The sounds got closer and closer as the man grunted before yelling. "Keep Eris safe! The code to destroy the lockdown is-!"

The message was cut off as the light stopped blinking before Issei looked at the man and closed his eyes.

"Even though he sacrificed so much for his daughter, he still protected her from whoever killed him," Issei said as he pulled out the journal and opened it before asking the Light Queen Slime to shine a bit of light in the film.

The Light Queen Slime nodded as she cast a ball of light that illuminated the room before Issei thanked her with a head rub as he looked at the book.

"The code has to be in here. Somewhere." Issei said as he looked through the whole journal before noticing that the final entry didn't show anything but a date.

"Eris's birthday," Issei said as he walked to the door and typed in the birthday before hearing the clanking of metal. The door slowly opened to reveal a throne room and to see a white-haired girl with long hair sitting on the throne as the Dungeon Core seemed to be part of her body.

You have entered the Throne Room of the Dungeon of Gluttony!

Capture or Destroy the core to claim the Dungeon.

Issei walked towards the Dungeon as he approached the girl's body before the girl's eyes opened. She thrashed at Issei, but her hands and feet seemed to be handcuffed to the throne as the girl seemed to act more like a wild animal.

"You killed Father, didn't you? All he wanted to do was help me! You with that witch, aren't you!" Eris yelled before Issei just took out the journal. Jako approached Eris and placed the body of her father, causing Eris to stop her thrashes. She whimpered as she looked at her father's mangled corpse before she used her slime arms to bring her father into her arms before speaking to him.

"Daddy? Daddy, please wake up. I-I'll be a good girl and go to school like a normal girl and make friends and make sure I do well to make you proud of me! So please wake up, Daddy! Don't leave me like mom! PLEASE!" Eris yelled as she let out her tears, and she cried to the Heavens for her only family not to leave her while Issei clenched his fists at the screams of sorrow since he knew what that feeling was like. Alone and weak, which is what his father told him when he learned of his older brother and sister dying in a miscarriage.

Jako wanted to go to her, but Issei stopped them as he shook his head.

"She's been here for who knows how long and hasn't seen her father, only to learn she's gone. Now is the time for her to see what has happened." Issei said as Jako nodded while Aurora and the other slimes walked towards Eris, who stopped crying but sniffled as she looked at them and asked what they wanted before they all hugged Eris in a large group hug.

The warmth of their bodies made Eris cry some more as Aurora gently rubbed her head and kissed Eris's head, making Eris's crying quiet down a bit until she began to cough out blood before looking at Issei and his group.

"W-Who are you?" Eris asked as Issei introduced himself.

"My name is Issei Hyoudou. The Dungeon Master of the Demon Dungeon. We came to see if we could negotiate with your father. We believed he was the Dungeon Master." Issei said as Eris smiled a tired one as she nodded before asking the slimes to undo her chains. She was then freed before walking towards Issei and opening her chest to reveal the Dungeon Core.

"Please. Take the Dungeon Core so I can be with my family." Eris said as she stuttered afterward. "P-Please kill me."

Issei saw the look in her eyes and recognized it as he had that same look when Raynare killed him: desperation and sadness.

"As you wish," Issei said as he reached into her chest and pulled out the core before. Eris moaned and gasped as she collapsed on her knees before taking her father's corpse into her arms. She smiled at her father's tired face.

"Don't worry daddy. I'm coming to join you and Mommy." Eris said as she then began to lose her strength before smiling at Issei.

"Arigatou Issei Hyoudou." Eris said before dying, a smile on her face as Issei looked at the two before sighing and closing her eyes.

"You are welcome," Issei said as he saw the notification next to his head.

Congratulations! You have conquered the Dungeon of Gluttony!

You can now combine this Dungeon with your own to expand your territory!

Rewards will be sent to the throne room.

Issei didn't care about the rewards as he swiped away the screen as he saw the Dungeon of Gluttony revert to the throne room before seeing the Dungeon Core resonate with his own Dungeon Core until it combined, which caused the Dungeon of Gluttony to change as Issei saw its new stats.

Dungeon of Gluttony is now under new management!

Congratulations on being the new Dungeon Master, Issei Hyoudou!

The Dungeon of Gluttony is now the same rank as the Dungeon of Demons.

Dungeon of Gluttony

Rank 3

Total Number of Floors: 10

Dungeon Core: 1000/1000

Minions:

Queen Plant Slime

Queen Fire Slime

Queen Water Slime

Queen Gravity Slime

Queen Poison Slime

Queen Light Slime

Queen Shadow Slime

Queen Wind Slime

Queen Normal Slime

Queen Earth Slime

Issei closed it as he turned to the ten Queen Slimes before speaking to them.

"I know many of you have been underground for so long, which is why I want to offer you a chance for freedom. I will release the familiar seal on you all so you can be free, but if you wish to stay here now, I will make sure you are all treated as I treat my other members of the Dungeon of Demons. You would be part of our family." Issei said as the Queen Slimes spoke to each other for a bit before Aurora walked towards Issei and bowed to him.

"Issei Hyoudou. We wish to serve and protect this Dungeon and would be honored to fight alongside you. All we ask is that you care for us and help us when we need you." Aurora said as Issei smiled as he then patted her head.

"Of course. After all, you are part of our family, and that means you all shall not be left alone. If you need help, then we'll be there to support you in any way we can." Issei said as Aurora thanked him by hugging him before the others joined in the hug, with Jako and Rize smiling at the scene.

"Heh. It looks like Xenovia and Rin have some competition now. Hehe." Jako said as they couldn't wait to tell the two of their new friends while Rize shook her head while looking at her Master and smiling. How her Master doesn't allow his powerful magic to make him arrogant. He knew he was not all-powerful, so Rize was glad Issei wasn't giving in to one of the sins of humanity.

"Master. We guardians live to serve you, and we shall make all of your wishes come true, should that woman Raynare appear to try and harm you." Rize's eyes then turned to black holes as her mouth expanded to the floor, with her teeth being razor sharp.

This victory was just the beginning of her transformation to being the Demon of Gluttony.

"I'll devour her until there's nothing left of her."

Dungeon of Dreams.

"Oh? Issei's team took over the Dungeon of Gluttony? Woah, I'm surprised since I was worried about him biting off more than he could chew, but it seems I was worried for nothing. But still, this means that the others will see it. Which means Issei will be at the other Dungeon Masters's attention." Aika said as she was worried for Issei's safety until she decided to keep gathering intel to help Issei and herself prepare for the future Dungeon Masters, should they try to attack his Dungeon to gain his minions and such.

The Dungeon of Devils: Kuoh Academy.

"Hm? So the Dungeon of Gluttony has been taken by the newest Dungeon Master? How interesting." A voice said as the figure held out a wine glass to no one until a wine bottle flew out of the air and poured tomato juice into the glass until the figure stopped it.

"Thank you." The figure said as they looked at the screen before pulling up the name of the Dungeon Master.

"Issei Hyoudou. How interesting. I'll have to visit him." The figure said as they then took a sip of their tomato juice.

"It would be good to have him on my side before my King and the Sitri King sink their claws into him." The figure said before snapping their fingers.

"Cheshire!" The voice shouted as a woman with long purple hair emerged from the shadows and bowed to the figure as she spoke to her.

"Yes, Lady Vladi?"

"Gather all you can on Issei Hyoudou. He is the new Dungeon Master, and I wish to know all there is to know about him. Make sure to stay hidden so the Devil King doesn't catch wind of you after all." Lady Vladi said as she smiled at her reflection in the glass.

"Rias Gremory and Sona Sitri think they control Kuoh Town but have no idea how wrong they are. This school is my domain, and the other Dungeon Masters control the other areas. We are the real protectors of this town." Lady Vladi said as she sipped her tomato juice again, while Cheshire smiled as she liked seeing her mistress's dark side appear.

"Oh, my mistress. You may look sweet and innocent, but you are one sadistic woman." Cheshire said as Lady Vladi smiled as she nodded in reply.

"But of course. It's thanks to the Dungeon of Devils choosing me that I can be my true self and cast off that shell of the coward I was before I became a Dungeon Master." Lady Vladi said as she saw Cheshire leave her to be before Vladi made sure she was truly alone before pulling out a plushie of Issei and cuddling it in her arms.

"Ohh! I wish I could tell you about me, but now that you're a Dungeon Master like me, we can be together!" Lady Vladi cheered while Cheshire smiled at her mistress's hidden side.

"Heh. My lady acts so scary, but she's really a kid with a schoolgirl crush on a boy who said she was cute and helped her when she needed it." Cheshire said as she then vanished from the throne room as she began her mission.

The Dungeon of Death.

"Ah. This boy will be an interesting addition to my army of the dead. Perhaps I should visit him when he becomes stronger." A skeletal figure said as he looked at the screen before smiling a toothy grin at the creatures within the Dungeon to fuel his experiments.

The Dungeon of Strays.

"Wait. Issei Hyoudou? He's a Dungeon Master as well?" A chestnut-haired girl said as she was shocked at the name before smiling at the image of it being real.

"I-I'm so happy he's still here in Kuoh. Maybe I should visit him and see if he can help me with my associates." The girl said as she then tended to a Devil Spiderwoman, who was grateful for the help from the Dungeon Master, who was more of an Angel than a Devil.

The Dungeon of Mutants.

"Oh? So someone was able to break into the Dungeon of that spineless man who wasted his potential to save a pathetic girl who was on the verge of death?" The woman said as she smiled at the name of said Master before rubbing a snake head that was coiled around her neck.

The woman was sitting on a throne with snakes around her until she shouted.

"Frog Girl! Where are you?"

"R-Right here Lady Medusa!" The girl shouted as she ran over to Medusa before tripping over a rock and falling before Medusa, who seemed amused by the girl's antics.

"As much as I enjoy your one-woman comedy show, I need you to be a spy for me; otherwise, I'll eat you," Medusa said as she let her forked tongue out while the girl shivered under her mistress's cold gaze as she felt so tiny in front of her.

The Frog Girl was actually a human subjected to Medusa's experiments, making her part frog. She had forgotten her name, but Frog-Girl was now a woman of rather modest build with long, straight, silvery hair and a narrow mouth accentuated by a prominent black circle at each end, resembling the air sacs on a frog's mouth. Her usual attire consists of a thigh-length black dress with a white polka dot pattern over what appears to be a dark gray blouse, black pants, and knee-high white boots. Arguably, the most intrusive characteristic of her appearance is her distinctive orange hat with a frog-like face, which further reflects her amphibian theme.

She was very scared of Medusa, who definitely had the same fear that the real Medusa would inflict upon her enemies.

Medusa wore a black body-length suit with a hood that extended downwards to her knees. The hood itself is adorned with an eye-like marking upon either side, which, interestingly, when worn in addition to the shape of her hair, gives it the appearance of a snake's mouth with teeth and fangs. Notably, she is barefoot when not in disguise, with a unique toenail and fingernail polish that is black featuring yellow arrows pointing upwards.

"Now, little frog, I need you to be useful for once in your pathetic life by gathering intel on not just the Dungeon of Gluttony but also on its new owner, Issei Hyoudou. I'm curious about what kind of Demons follow him, and if I manage to get him to my side, perhaps he can help me prepare to take over this town by eliminating those pesky Devils who stand in my way." Medusa said as the frog nodded while shivering in fear before leaving the throne room. Medusa smiled at the cowardly creature since the snake knew that the frog was useless in combat but was an excellent spy.

"And now I'll just have to prepare my forces," Medusa said as she pulled out a phone and smiled at the time before snapping her fingers as her dress changed to a nurse uniform.

"And now it's time for me to get to work. After all, even during the summer, the school nurse must make sure the children don't get sick before finals." Medusa said as she licked her lips before looking at some photos on her phone.

"Now, who should I choose to be my new test subject? The Kendo Duo? Their skills in swordsmanship will be useful since they're amateurs, but with a bit of my poison, I can make them into a powerful weapon for my use." Medusa said as her eyes glowed. She enjoyed snakes due to them being true predators who know how to patiently wait for their prey before striking them with their fangs.

"All I need is one tiny accident, and then I'll sink my fangs into them." Medusa smiled as her teeth became sharper than a sword blade.

The Dungeon of Demons

"It's hard to believe that the founder of the dungeon wasn't a bad person but someone who just wanted to save his daughter," Issei said as he looked at the two graves that the Queen Slimes made for them since they deserved a proper burial before looking at the new location of the Dungeon of Gluttony. The Queen Slimes asked for it to be moved to the surface, so Issei did so by making the Dungeon on top of the water and making the water surface safe for all of the Queen Slimes so they could walk and fight easily without any issues.

Issei then looked to see Xenovia walk towards him before looking at the two graves and placing a small doll at Eris's grave.

"I thought Eris would like to have her doll close to her. Apparently, she liked it and held it close to her." Xenovia said as Issei smiled at her before taking her left hand, which was shaking in rage until it stopped when Issei took it in.

"I'm sure she would be happy, Xenovia, and I think those kids you avenged would be happy to know that they can finally rest in peace," Issei said as Xenovia let some tears leave her eyes as she spoke to him.

"Issei. Can we really make a world where the children are not subjected to the same pain that I endured? Are children just pawns to be used in this chess game of power?" Xenovia asked as she recalled the many children who were killed and abused when they were hurt or near death due to the many experiments to make a living weapon for the church until Issei hugged Xenovia close to him.

"I believe we can. It won't be easy, but with you by my side, it can make the challenge a bit easier. I desire a world as well where humanity isn't puppets to the supernatural world that we can actually enjoy living without fear that the supernatural world will harm them." Issei said as Xenovia smiled and clenched his hand a bit as she was grateful for having met Issei, someone who wishes to better the world and has a hatred for the Fallen Angels like how she despised the Angel and Church Faction.

The winds have shifted as the other Dungeon Masters are now taking notice that the new Dungeon Master is not to be underestimated.

Scene!

Phew! Sorry for taking so long, but I wanted to get the pieces together since the summer before canon is going to be fun since the Dungeon of the Dead is coming. Heheheh.

I have two new stories that shall emerge with the upcoming updates for my other stories.

The first one will be Issei Hyoudou: Wielder of the Omnitrix. When Issei meets his cousins Gwen and Ben during the original series, Issei finds the Omnitrix instead, and the story changes as Issei learns of his Sacred Gear, the Boosted Gear, before the two fuse together. Now, after seven years in America facing aliens, Issei returns home in hopes of relaxing back at home.

And now the second story will actually be a Sekirei DXD with Issei Hyoudou replacing Minato, and this one has a bit of tragedy but also Issei wanting to leave his old life after he loses not just the Boosted Gear but his family as well as the girls who loved him. Heartbroken and hurt after losing his life for a second time, Issei decides to leave Kuoh Town and go to Shinto Teito to start anew. Little did he know that Issei would get involved in another supernatural disaster, but perhaps this is what he needed to help him live again.

I'll also have wonderful news about The Champions of Humanity and the Pokemon DXD story I am doing. I will be posting a poll on who Issei's familiar will be for the first one and Sona Sitri's profession in the second story. The next update will be the RWBY DXD story, so stay tuned for the Issei Trailer.

Happy Halloween!