A/N First of all, Thanks for the support! This is an AU story, so that's why Rias and Issei are in the same class. Also, I really wanted to get to the central part, and I ship Rias and Issei, so I kinda rushed their relationship. Without further ado, let's jump on chapter 2.

UPDATE: The reason I deleted the Legacy of the Red Dragon Emperor is because I didn't think of the whole thing properly, and I think it's hard for me to keep the story as it really didn't make any sense. Once I finish this story, I will make a sequel of it and it will be the continuation of this one. Although it was too early to say, I just want to thank everyone who supported this story and my deleted story. I'm trying to improve my grammar and my vocabulary usage to give you guys the best reading experience. Hope you guys understand, and peace out!

"…" Conversations

'…' Thoughts

[…] Ophis talking inside the Sacred Gear

(Normal POV)

(Kuoh Academy Class 2-B)

After Issei confirmed his love relationship with Rias, everyone in the class freaked out about it. Not only the student, but Asaka-sensei was shocked about it as well. After knowing their relationship, Asaka-sensei made Issei sit next to Rias so he can adapt school life at a faster speed. Moreover, Rias rejected anyone to sit beside her before Issei transferred.

"Issei-kun, please sit next to Rias-san. I thought this will be a good opportunity for Issei-kun to adapt school life easier. Rias-san, can you?" Asuka-sensei asked Rias hoping her to accept. She knew Rias was an "Idol" in this school, but she refused to talk to any man or even girls except her club members–the Occult Research Club. She was currently the Club President of it.

However, if Issei is her boyfriend, then she might be able to accept her request.

Rias didn't respond to her question. Instead, she hugged Issei's arm.

"My seat is over there! Come Issei, sit next to me!" Rias said happily as she walked to her seat alongside Issei.

Everyone except the couple was jealous that Issei can sit next to her. But most of all, they still couldn't believe the Great Onee-sama of Kuoh actually dated a transfer student, and he is a super handsome one! It made everyone jealous but also happy about their relationship.

(Recess)

The news of Rias and the new transfer student being in a relationship spread like wildfire. Everyone who heard was either in shock or cry as they will never get a chance to date Rias. Girls were sad about Issei was occupied, but the boys looked down Issei and began to flirt Rias.

"Rias! Date with me not this scumbag!" A boy with 1.78m with a fine physique pointed at Rias.

Rias just stood up staring at him, making him scared as he knew if he pissed off the Great Onee-sama of Kuoh, he would probably get killed by either boys or girls. Once that guy retreated, Rias sighed and looked at Issei. Issei was currently looking outside the window wondering something. Rias then went towards his side and hugged him behind. Issei felt her large bust on his back and feeling embarrassed as Rias did such bold action. Not only he felt surprised but also everyone didn't know Rias was this daring.

"So Issei, you have become more muscular huh?" Rias whispered on Issei's ear with a seductive tone.

"Come on Rias, with a year training, this is a normal right? Besides, you are too bold! Everyone is staring at us!"

"I don't mind being bold as long as I'm with you. You know I love you right?" Rias said hugging him tighter. Issei looked around and began to worry.

"Yeah yeah I get it, so please stop as I think they are going to kill me," Issei begged to make Rias broke the hug.

Issei turned around and saw a lot of faces. All boys were staring at him with killing intent, and girls were staring his muscular body and praised it. Some girls were also sad as the new handsome transfer student was Rias' boyfriend, they could do nothing but accept the truth. He looked at Rias after looking at everyone's reaction. She put a sad face which makes Issei felt guilty about breaking the hug. To comfort her, he put his left hand on Rias' cheek, and the right hand on her head to pat her. Rias gave a bright smile and then put her right hand on top of Issei' left hand.

"Die.. die.. die" Boys around started to mumble.

"Oh my god, I never see Rias-sama behave this way! He must be a terrific guy!"

"Not only his handsome appearance, apparently he had a great personality too! He is the perfect boyfriend!"

Girls seemed to be satisfied with their actions.

Rias ignored them as usual, and she told Issei about the school. She hugged his hands pulling him to walk around the whole school. Although Issei learned about it, the surrounding people were looking at him on either a shocked face or a killing gaze.

['This school is lively isn't it'] Ophis said in Issei's mind.

'Yeah…. Why was I targeted just because I'm dating Rias? This is so broken…' Issei said, and he sighed in real life.

"Issei what happened?" Rias asked in curiosity as Issei suddenly sighed.

"Um this school was way too lively," Issei said making Rias laugh at his honesty.

"Issei, just ignore them. This school had way too many gossips, and I never care a single one of them. Although I don't care, I still feel frustrated about what rumors they had been spreading. But now you are here, I can be reassurmed of my time here now!" Rias said excitedly making Issei smile.

They walked into Class 2-A, and everyone was wondering why they were here. Rias was planning to introduce her queen to Issei. They walked on the side of a girl with a long ponytail and a voluptuous figure that could compete with Rias. She was reading a book before Rias and Issei stepped in. Issei held Rias' hand as she knew there will definitely be boys trying to flirt his precious girlfriend and he couldn't accept that. Rias walked with Issei to her queen's side with a slight blush.

The girl looked at both of them with shock. She also found Issei attractive but seeing Rias held a man's hand, she could guess they were not in a healthy relationship.

"Akeno, this is my pawn also my lover I always mentioned. Issei, introduce yourself." Rias looked at Issei telling him to introduce himself. Akeno was shocked about it.

"Hello, my name is Hyoudou Issei. Call me Issei is fine. I'm Rias' boyfriend as well as her only pawn. Please take care of me as we're serving the same master." Issei said trying to lower his voice as they were the only devils here.

Akeno then stood up and began to introduce herself.

"My name is Himejima Akeno. I'm Rias' queen as well as her best friend. Please take care of me as well." Akeno offered a handshake and Issei gladly accepted.

"Issei, you will be joining the Occult Research Club as it is the headquarter for us to do the devil works and contracts. I will go to the base room with you after school." Rias said, and Issei nodded,

"Um so Issei-kun, are you the rumored wielder of the Longinus [Infinity Critical]?" Akeno said shyly as she was attracted by Issei's handsome face. Rias was confused when Akeno acted like that.

"Yes. Inside my Sacred Gear, the former Dragon God—Ophis was residing in it. I will show you my Sacred Gear after school." Issei said making Akeno shocked.

"So… you are the first reincarnated devil to have a super-mutation piece inside your body…" Akeno mumbled, and Issei nodded.

RING RING RING RING

"Seems it is time for the lesson. I will see you guys after school!" Akeno waved her hands towards the couple who were leaving.

(After school)

"I never thought the school was this fun!" Issei said with a face full of satisfaction.

"Yeah especially I'm with you Issei, I have so much fun!" Rias said as she stood up.

The couple began to walk towards the Old School Building. During the walk, Issei asked about Rias' peerage.

"So as far as I know, you never told me about your new peerage members except your Queen. What pieces do you have right now?" Issei asked.

"Hmm… Now what I have left are a knight, a bishop, and a rook. I couldn't find suitable candidates for those pieces." Rias began to be sad as she really wanted to complete her peerage.

"It is ok. You will definitely gather all of your servants. since the Gremory household was famous for love, many people will like to become your servant." Issei comforted Rias making her kissed him on his cheek.

"Thank you, Issei. You are the most precious servant." Rias said leaning her head on Issei's shoulder.

They arrived in the old school building, the base room of the Occult Research Club. Issei was shocked to see the base room as it was a rather huge one. There was a large desk two sofas. On the couches, there were a blonde-hair guy and a white-hair girl sitting on it. The blonde-hair guy was handsome, but he couldn't compete with Issei. The girl was cute, and Issei can felt she was no ordinary devil.

['The girl over there….'] Ophis said in Issei's mind.

'Yeah, I can feel it…' Issei said beginning to think about the identity of the girl.

"Welcome to the Occult Research Club. Basically, the existence of the Occult Research Club was to hide our identity as a devil. Since Issei you just transferred here, you will join the Occult Research Club as your first and the only club you are going to participate. Now, you haven't met my Knight and my Rook. Yuuto, Koneko, please introduce yourselves." Rias said, and the two of them nodded.

The blonde-hair guy stood up and bowed to Issei.

"My name is Kiba Yuuto. I'm from class 2-C, and I'm a Knight of Rias-buchou. I have a sacred gear, and it is called [Sword Birth]. I can create any demonic sword with my magic power, but I still haven't unlocked my Balance Breaker. Anyway, nice to meet you!" Kiba said with a respectful tone.

The white-hair girl also stood up and bowed to Issei.

"My name is Toujou Koneko. I'm from Class 1-A, and I'm a rook of Rias-buchou. Please take care of me from now on." Koneko said making Issei confused about her abilities.

After they had introduced their selves, Issei went silence for a while. He can feel that Koneko was powerful, but she was definitely hiding her identity. Was she afraid of her power or was she doing it purposely?

['Hey, Issei go ahead and introduce yourself. You are being rude now you know?'] Ophis said telling Issei to began his introduction as soon as possible.

"My name is Hyoudou Issei. I'm a new transfer student from Class 2-B, and I'm Rias' only pawn. I consumed 7 Mutation Pieces and 1 Super-Mutation Piece to become a devil." Issei stated the fact of making Kiba and Koneko shocked. Rias over there made a proud face.

Issei then focused his mind on summoning his Sacred Gear. The color and the shape of the Sacred Gear made Kiba confused as he had never seen this type of Sacred Gear.

"This is the [Infinity Critical]. I'm the first wielder of this new high-tier Longinus. Inside the Sacred Gear, the former Dragon God–Ophis was resting inside. Ophis, say something." Issei said looking at the Sacred Gear.

[Hi everyone, I'm Ophis, the former Dragon God, and the Dragon of Infinity.] Ophis said making Issei confused.

"Ophis is this an introduction?" Issei asked thinking about the introduction was too brief.

[Yeah, I don't know what should I talk about. You had basically told everything I had to say.] Ophis said making Issei sigh.

"Um… ok. Let me continue my introduction then. I'm the Infinite Dragon Emperor and Rias' boyfriend." Issei said putting his hands on the back of his head. Rias blushed and happy about Issei's introduction. However, Kiba and Koneko were in shock once again. They couldn't believe their president never told him about her having a boyfriend and the mysterious pawn was the Infinity Dragon Emperor.

There was another moment of silence until Akeno opened the door.

She saw Rias blushed, Issei stood there confused. Kiba and Koneko were shocked putting an "O" face.

"Ara ara, what's going on here?" Akeno asked with her usual "Ara ara," tone.

"Well, Issei just introduced himself. He surprised Kiba and Koneko of Issei's identity as the Infinite Dragon Emperor. Also, he also mentioned the fact that I'm his girlfriend which made me…." Rias said while covering herself with her hands. She was still happy about Issei's introduction.

"Ufufu~ What a romantic couple. Issei-kun, do you mind me to make some tea for you? Rias enjoy drinking my tea as well as everyone else in the club, so I think you will like it as well." Akeno said offering Issei to drink a tea.

"Of course. I can't wait to drink your tea. Rias, come here as well. I will drink the tea with you." Issei said making Rias leave her chair and went to Issei's side.

When Akeno went inside a room behind the President's Desk to make her tea, Issei and Rias walked towards the sofa. After they sat down, Rias was still happy about Issei, and she leaned on Issei's shoulder. Issei knew that Rias was pleased, so he decided to put his left hand around her. Rias couldn't be happier when Issei put his hands around her, and she hugged Issei suddenly. Issei smiled and looked at Kiba and Koneko. They never saw that their president fell in love like this. They were still in total shock, and they didn't know what to do.

Akeno came out with a cart of tea, and she giggled of the current scene. Rias broke the hug immediately when she saw Akeno as she felt embarrassed. Akeno went to Issei's side and took a cup of tea from the cart and gave it to him. Issei showed a smile to Akeno and drank it with expectations.

He drank some of them, and he tried to taste the tea as much as he can. He thought that it was good, and he just sat there without saying anything. However, Rias and Akeno didn't know what happened, and they started to ask Issei various questions.

"Issei? Is it ok?" Rias asked, but Issei still didn't respond.

"Issei-kun? Do you like it?" Akeno asked with a worried tone as she thought Issei dislike it.

Issei still didn't respond as he was still intoxicated by the taste of Akeno's tea.

Rias began to worry, and she pulled Issei's cheek.

"Ouch!" Issei finally said something and Rias sighed.

"Issei-kun…. Do you not like it?" Akeno said looking down.

"No, this is unexpectedly good. You are really good at making tea. Thank you Akeno-san!" Issei said smiling towards Akeno making her blush. However, the crimson-haired girl next to Issei began to release scary aura.

"Issei! If you want to drink tea, I can make you tea every day!" Rias growled as she felt jealous.

"Ara ara Buchou, Issei-kun liked my tea. We know that your tea is no way as good as mine right?" Akeno said teasing Rias, making Rias angrier.

"Akeno…. I am going to practice my skills and let Issei taste the best tea in the world!" Rias shouted as she was devastated about Akeno's statement.

Seeing the argument, Issei got a sweat drop as he didn't know what happened.

"Stupid Akeno!"

"No, Issei-kun just enjoy my tea after all. Why you're being so stingy?"

"No! Issei is mine! Mine alone! And He will definitely love my tea!"

"I didn't say I will steal Issei from you did I?"

"Urgh! Akeno!"

"Just give up."

"WHATTTTTTT?"

Akeno continued to tease her master almost making her explode. Suddenly, a light stopped them. A communicate circle appear on the table. A crimson-haired man with an appearance similar to Sirzechs appeared on it.

"Rias, there is a stray devil nearby. Her name is Vizer, and you need to bring your peerage and kill the stray devil as she messed around the town! From the Evil Piece Tracker, she was now resting in an abandoned country not far away from your school. Please go and kill this devil who betrayed her master. Beware that this stray devil was a rather powerful one, her level was on par of a high-class devil. Please be careful. " The man said, and the communication circle disappeared without any responses from Rias.

"Stupid father. Alright since this is Lord Gremory's order, my adorable servants, let us go and kill this stray devil!" Rias shouted excitedly.

""Hai Buchou!""

Rias created a magic circle and teleported her peerage to the abandoned factory. However, there was no one when they arrived.

(In an abandoned factory)

Issei summoned his Infinity Critical and prepared for an attack. After a while, an object flew towards them with a high speed. Issei stopped it using his power, making the person who threw the object impressed.

"Come out stray devil! I know you threw this big silver can!" Issei shouted making the devil came out slowly.

The devil was a girl with a reasonably large bust. However, she soon turned into a disgusting monster making Issei felt disgusted. Rias stepped and said,

"Stray Devil Vizer! As you betrayed your master, your punishment is death! In the name of Duke Gremory, I will perish you!" Rias shouted, and she looked at her Knight and Rook who responded with a nod.

Since Kiba was a knight, his trait had fast speed and great techniques to fight the opponent. However, his defenses are weak, and if he were careless, he would be easily defeated. On the other hand, Koneko is a rook who had a good defense and hold great power. However, she was slow in speed so opponents could be able to escape quickly.

Kiba used his Sacred Gear to create a demonic sword. He rushed towards Vizer trying to deal damage. Vizer hit him easily making him fall. However, Kiba created another demonic sword, and this was a more powerful one. He did the same thing again, and this time, both of them were injured. Vizer took out her blade and began to fight Kiba. Kiba realized it was impossible to confront her directly, so he ran around her hoping her to get lost of him.

"Hmmm… this was rather a good strategy. Using your speed to hide yourself." Vizer said with a sarcastic tone.

Kiba ran for a while, and he found a spot that he can attack. He "flew" towards Vizer and began to slash her.

"You are wide open!"

"Too naïve!"

Vizer was able to keep up his speed, and she destroyed his sword using her blade. His sword was shattered into pieces making him shocked. He created another more powerful demonic sword and breathed heavily. He was surprised that Vizer was able to attack him even though he used his best attack, and she could destroy his sword effortlessly. He retreated hoping Koneko can deal with him. Koneko ran to Vizer's side and held her legs with her bare hands, she swung Vizer for a few rounds and threw Vizer. However, Vizer used her demonic energy to land safely.

"So you're a rook. Great defense and attack power, but poor speed."

She rushed to Koneko's side and gave her a great punch. Even though Koneko was a rook, she couldn't handle that particular punch. Koneko was pushed to the ground being injured. She tried her best to get up and gave Vizer another mighty blow. But, Vizer blocked with her bare hands.

"You can only do this? You are too weak to fight me!" Vizer exclaimed and kicked Koneko away.

['The girl was holding back. It was too obvious. If she had used her power, she would have won easily…'] Ophis began to confused.

Issei was doubting about it too, but as Koneko was being attacked and attacked, he began to worry about his allies. When Vizer gave her a critical blow, he finally stepped up to confront the monster himself.

"Vizer! You hurt my friend…. My kouhai…. I will not forgive you!" Issei shouted emitting a scary aura making everyone scared. The aura he emitted was immense as it was close to an ultimate-class devil.

[Ready to kill this shit?] Ophis asked

"Yeah let's do this!"

When Issei was ready to attack, Akeno put her hand on Issei's shoulder and pulled him back.

"Ara ara, it seems like you really want to help them. However, I will have to demonstrate my power first~" Akeno said, and Rias nodded.

Akeno summoned her wings and flew on top of Vizer. She noticed that Vizer was looking at her with a dull face. It made her more exciting as she wanted to give punishments towards that stray devil.

"Vizer-kun~. You are so daring to leave your master. This is an action of a bad kid, and a bad kid needs to be punished~ So now bad kid Vizer, I am going to punish you~~" Akeno said while forming lightning with her finger, showing a sadistic smile.

Akeno pointed her finger towards Vizer. She fired some lightning to Vizer making her tremble.

"AHHHHHHHHH! STOP!" Vizer screamed as she couldn't endure the pain from Akeno's holy lightning.

"Ufufu~ scream more so I can enjoy~ Beg me for mercy," Akeno said making Issei scared about her.

"She is a huge SM Fan. When she was fighting an enemy, the sadistic side of her activates immediately. Don't worry, she treats her friend well, so you don't expect her to do that to you." Rias said while Akeno was still making Vizer suffer.

Vizer was apparently taking damage as Akeno kept sending lightning to attack him. However, Vizer tightened her fist and released an abnormal wave to stop her assault. Akeno was blown away by the wave, and she almost lost her balance. As she regained balance, she saw that Vizer was looking on the floor. She started to emit a dark green aura.

"Unforgivable…. Unforgivable….. WHO DO YOU THINK I AM!?" Vizer screamed and began to transform herself.

She turned into a three-head monster. Her breasts were placed in a weird spot (close to her belly), and her body was slimy. She fired some slime shots towards Akeno making her clothes melt. Akeno's large breasts were exposed making Issei blush. However, he turned and looked at Vizer, feeling disgusted about this dirty move.

"Wow you just crossed the line did you? Such a pervert… well anyway, I'm going to avenge for my Vice-President! Ophis!" Issei shouted raising his left hand.

[Infinity Boost!] Issei's Infinity Critical shouted.

"Wait…. Infinity Boost?!" Rias exclaimed.

"Does that mean Issei-kun inherit the Power of Infinity this early?!" Kiba shouted as he couldn't believe Issei just wielded immense strength.

However, that was not the case.

[Since the original Twice Critical can only double the user's power once only, the user will be rather weak. However, since this Sacred Gear was made of my ability when Issei boosts his power, he can choose any times of boost he liked. No one was able to figure it out how many boosts he did. Although he can boost his power to unlimited, right now it will make him suffer as he still couldn't handle it. He still has a long way to go before processing my original power. ] Ophis explained.

"I boosted 100 times. I still cannot fully control this power as too much power made me suffer." Issei said making Rias and others shocked about his strength.

[Also, since I'm immortal, Issei is also immortal. Any damage won't cause him injured as the wound will regenerate itself to protect him.] Ophis said making Rias shock even more.

'Since when did Issei inherit this kind of strength? Despite all those years of training, he was still trying to master a single bit of his power….. What had he gone through to get this kind of strength?' Rias thought thinking about Issei's power.

Not only Issei's physical abilities were increased, but also his attack. Suddenly, he vanished surprising everyone. Vizer tried her best to feel Issei's presence; however, it was a total fail.

'Wait where was he? Did he use his power to transparent himself? No that's not it! He must be planning to attack me!' Vizer thought.

After a few seconds, Issei suddenly appeared next to Vizer's side.

"Gotcha," Issei said.

He gave her a hard punch on her stomach making her spill blood everywhere. Not only that, but she has also punched far away, and she damaged the properties next to her. The punch was so too great that made the properties broke and created some smoke. After the smoke faded, Vizer was painfully leaning on the wall and couldn't move at all. Her head was reduced to one, and one of her hands were destroyed. Doing such damage, the Gremory Household could say nothing but surprised by Issei's strength.

"What… what is this power?!" Vizer screamed while in shock. She was scared about Issei's Sacred Gear. Most of all, it was the rumored Longinus that not even God could create. It was ironic though as God created the Sacred Gear System.

"Rias, you might be wondering, when did I able to use this power. Before the training with Tannin, I couldn't unlock Balance Breaker causing me difficulty to handle. However, during the training, Tannin almost killed me making me tried all my best to survive. As I was willing to survive more than anything, I was able to unlock my Balance Breaker. It made me so much easier to control my power in both base form and armored form." Issei explained to Rias to solve her confusion.

"Since you are my master, you should be the one who kills her," Issei said. She nodded and walked towards Issei's side and began to gather the Power of Destruction on her hands.

"Stray Devil Vizer, do you have anything to say before your death?" Rias asked.

"No. Just kill me," Vizer said with a tone of frustration. She already gave up when she witnessed Issei's immense power.

"Very well. In the name of Duke Gremory, I will now perish you. Goodbye Stray Devil." Rias said, and she threw her orb made of Power of Destruction towards Vizer.

Vizer was sucked inside the orb, and her body began to perish part by part. She screamed as it was excruciating. Although it was cruel, it was no way as brutal as what she did to human. She suffered her own medicine, and this was well-deserved. After a few seconds, the scream stopped, and there was nothing left.

"That was tiring." Issei sighed.

Rias and the rest of her peerage except Issei were still in confusion about Issei's real power. Although this was expected, they never thought the power of Infinity was this strong. Also, Issei wasn't using his full power to fight a High-Class Devil! Issei looked at them, finding their reaction funny.

"Hahaha! I should really take my camera and take a photo of this. I will explain what happened during the training to solve your confusion. Now, let us go back to the base room and take our school bags." Issei said making Rias create a magic circle to teleport themselves back to the Old School Building.

(Occult Research Club Baseroom)

Issei grabbed his school bag and walked towards the door. When he proceeded to leave, he saw Rias was staring at him hoping for something.

"Is anything ok Rias?" Issei asked.

"Um… Issei if you don't mind can I ask you something?" Rias asked being blushed.

"Sure my love, what do you want to ask?" Issei said.

"Um….. here is the thing. Since you're back… I was wondering… Can I li-live with yo-you?" Rias asked feeling embarrassed about it.

Issei found her reaction cute, and he walked towards Issei's side. Rias was looking at Issei with a face of rejection. When he was walking towards her, she couldn't do anything but tremble. Issei hugged her and gave her a kiss on her neck.

"Sure my dear, onee-san wouldn't mind. After all, what's mine is yours."

Issei said making Rias blush even more.

Rias regained her composure and dismissed everyone. After Akeno, Kiba, and Koneko left, Rias and Issei walked to his home.

(Hyoudou Residence)

When they arrived, Issei clicked a button which made the bell rang. Rias was nervous to see Yukina again, but Issei just patted her head and said,

"Rias, she treated you like her own family as well. I don't think she will have a problem with it. You can even share the same room with me if you want to." Issei said making Rias embarrassed.

The door slowly opened. A woman with brown hair and brown eyes appeared. She was wearing an apron and looked beautiful with it. Although Yukina was in her mid-20s, she still didn't lose her beauty all those years. In fact, she seemed more mature than before.

"Welcome back Issei! Oh wait is this Rias-san? It had been so long since I met you!" Yukina said hugging Issei. She looked at Rias and gave her a big warm hug as well.

"Nice to meet you again Yukina-san. If you may, can I stay here while living in the human world?" Rias asked immediately bringing the topic.

"Oh, sure! Your old room was still here so you can use it!" Yukina said feeling happy about Rias' decision on living there again. She always felt like Rias was her little sister, so she gladly let her stay. Rias then bowed appreciating Yukina's acceptance. However, since she really wanted to sleep with Issei, she rejected the offer on living in a spare room.

"Thanks, Yukina-san. However, I think I will be sharing the same room with Issei. After all, I'm both his master and girlfriend so I must look after him." Rias said, and Yukina nodded.

"I understand. Please come in now!" Yukina said walking back into the house inviting Rias and Issei.

Rias took her stuff to Issei's room. Inside Issei's room, there was a desk on the left for Issei to study. On the right, there was a small bed which can only fit for one people. Rias was sad as she couldn't sleep with Issei with this kind of bed; however, she thought of a solution. She summoned a magic circle. The magic circle was large enough to cover the whole bed, or even more prominent. She placed the magic circle on top of the bed, and the bed slowly to become more significant to fit two people.

Issei was shocked about what Rias just did. She freakin' made his bed larger! Issei put down Rias' stuff and sighed. He took out his pajamas to take a shower. After Issei left the room, Rias began taking her stuff out to decorate the room. She took out some Japanese toys and placed them on top of Issei's bookshelf. Other than that, she also took out some famous Japanese building model such as Himeji castle, Nijō Castle and so on. After Issei came back, he was shocked that the room was full of Japanese building models and photos about Japanese culture. Issei knew that she loved Japanese culture and was always obsessed with books about Japanese traditional etiquette. When she stayed with him 10 years ago, she would always tell Issei to buy some Japanese model for her. After Rias placed all of her collection, she took out a dress and went to take a shower. Issei looked at the collection carefully and realized they were all high quality. However, one photo, in particular, caught his attention-

A picture of him, Yukina and Rias. They were next to a dinner table taking a selfie.

(10 years ago)

(Hyoudou Residence)

"5...4...3...2..1..0! Rias, I'm going to catch you!" Issei shouted.

Issei and Rias were in the garden playing Hide-And-Seek. It was Issei's favorite game. Rias was hiding behind a bush and trying to hide her presence with demonic power. Issei searched for a lot of places, like under a chair, behind bushes and so on. After a few minutes, Issei began to explore inside the bush. It took him some minutes to finally find Rias.

"Wah! I catch you!" Issei said when he found Rias!

"Wow! Issei, you are so good in this game!" Rias praised Issei making him blush.

"I just have a lot of experience that's all," Issei said while hiding his blushed cheek.

"Now, I will be the catcher! Issei, find the best spot to hide as I'm sure that I will catch you!" Rias said covering her eyes to begin the countdown.

"Issei! Rias-chan! It is time for lunch! Come!" Yukina shouted making both of the kids stopped.

They walked to the residence together, and they saw a lot of delicious meals. Next to the meals, there was a camera that caught Issei's curiosity.

"Onee-san, what is this thing?" Issei said holding and looking at it.

"This is a camera. It is used to keep precious memories, so that's why you know the face of our dad and mum." Yukina said beginning to cry.

However, Issei hugged her and said,

"Don't worry Onee-san. We are not lonely anymore! You see, we have Rias!" Issei said making Yukina realized how naive Issei was. However, it was not a bad thing as he made her better. Yukina paused for a while and thought of an idea.

"How about we take a selfie?" Yukina asked.

"Yukina-san, what is a selfie?" Rias asked in curiosity.

"It is a way to take a photo, and we have to hold the camera by reversing the direction. You see, the camera lens should be facing us to take a selfie." Yukina explained, making Rias and Issei wanted to know about more.

"How about we take a selfie?" Yukina said holding the camera and raised her hands. Rias and Issei followed as they stood next to each other and gave a victory pose.

After the photo was taken, Yukina printed out the picture.

"Rias, I wanted you to keep this," Yukina said giving her the photo.

Rias accepted it, and she saw this was a memorial of her living in the human world for the first time. She quickly ran into her room and placed it on her bags.

(Back to present time)

(Hyoudou Residence)

"Hmm... We were too young back then... a lot of things had happened during those ten years." Issei said feeling sad that time had passed by within a blink of the eye.

After a while, Rias came back naked. Issei was immediately attracted to her sexy body, almost had a nose bleed. As he was afraid that his male urge will come up, he told Rias to wear something. Rias giggled of Issei's reaction and wore the transparent dress that she brought before the shower.

"Issei, sleep first. I need to write a report to the Gremory House so it will take time. You had done an excellent job on killing that stray devil, so you deserved a rest." Rias said kissing Issei on his lips.

"Thanks, Rias. You had done a good job as well. As expected as the woman I love the most."Issei said making Rias blush.

"Then Good Night Rias, I love you," Issei said.

"I love you too Issei!" Rias said putting her hands on her cheeks.

As Rias left the room, Issei began to sleep.

(1 Hour After)

Rias finished writing her report, and she was walking to her room to sleep. When she opened the door, she saw Issei peacefully sleeping on his own. Most of all, he was half-naked! Rias smiled when she saw Issei's muscular body and his cute face. After staring at him for a while, she dressed in her birthday suit and lay on the bed next to Issei.

She hugged Issei tightly and embrace him with her soft breasts. She also leaned her head on top of Issei's chest, feeling Issei's warmth.

'Wow, Issei's chest is comfortable to lean on. At this point I won't be able to leave him alone...' Rias said hugging Issei tighter.

Rias soon slept while hugging Issei as her own personal body pillow.