I do not own Fairy Tail or Highschool DxD

10light53: I understand you're a hardcore Fairy Tail fan. If you don't like the story or the summary then simply don't read it.

faust79: Lol

Astrobot1745: This is true. He isn't slow to attack anyone. I understand that he can annihilate them both with just a pinky, but I have plans for both of them. My bad.

LMaltez: Yea, I can see how it's weird that he didn't kill Rias or Issei. Truly sorry if you didn't like that.

thebake: You got it.

Keep it up, guys. Now onto the story.

The next morning the students of Kuoh were outside stretching since they were in gym class now. After there stretching they all went to do their separate things.

Some ran the track while some of them played tennis. "Hey, let's go get a ball from the storage." A student said.

The other student agreed. The both of them went over to the shed and opened the door to go look for a ball.

"Do you see one?" She asked as she was looking for one as well.

The young girl went further in and she saw a ball. She went over to go get it, but she heard small snores to her right, she looked over.

She fell back and she screamed at the top of her lungs. "AHHHHHHHHHH!" She ran out quickly not even paying attention to her friend.

Her friend walked over and saw what she yelled at, and she yelled as well while running out of the small shed.

Acnologia woke up with a small growl. He stood up and started to walk out of the shed.

"What's the matter?" Their gym teacher asked. The two girls only pointed towards the shed. He walked over to the shed, and he saw who was in there.

"Hey, get out of here if you don't want me to call the police. You can't be living in here. This is school property." He announced.

He didn't say anything as he walked up to the gym coach and punched him in the face making him fly back.

The students screamed and ran for there lives.

The ORC and the Student Council heard this so they all ran out to go see what the commotion was about.

Acnologia was walking away from the school but was stopped by Rias and Sona. "Stop right now!" Sona yelled as both the queens of Rias and Sona made a barrier around them.

Acnologia stopped and looked up at the sky, he looked back down and turned around to look at the new girl. "Why did you come to this school?" Rias asked.

He looked over at Rias. "Well, it seems that we meet again Redhead." Rias didn't like what he called her.

"Just answer the question!"

"I was just sleeping." He said in a cold tone. Rias looked confused at what he said.

"I don't believe that what so ever. What is the real reason your here?"

Acnologia gave Rias the same look he did back at the warehouse. She saw this, and she shivered a little. "Who is that Rias?" Sona asked.

"I don't know his name, but he calls himself the Black Dragon of the Apocalypse or as the True Dragon King."

"Why does he call himself a dragon then? He doesn't even look like one." Tsubaki said.

"What is your goal, Black Dragon?" Sona asked. Acnologia didn't respond, but all he did was turn back around and leave.

"Is your goal to find the Seven Dragon Slayers?" Rias asked making him stop in his tracks.

Acnologia clenched his fist and he looked at her again. "Where are they?"

"Surrender yourself and I will help you find them."

"Your arrogance will be your downfall." Acnologia charged right at them, and he grabbed Kiba's head smashing it to the ground making him fall unconscious.

Acnologia was about to grab Rias's face and squeeze the life out of it, but Saji caught Acnologia's right arm in the absorption line in time.

Everyone backed a good distance from him.

"Someone get his other arm!"

Issei went over to him and tried to grab his left arm but was surprised that he only grabbed his cloak instead of his arm. "What the?"

"What's the matter?" Saji asked.

"There is no left arm." Everyone was shocked to hear that.

Acnologia turned towards Issei. "I will erase you and every other dragon there is in this world."

"I don't think so." Issei summoned his Boosted Gear and punched him in the face, but it had no effect.

"Issei, move out the way!" Rias ordered as she charged up her attack and shot it at him exploding upon impact. Akeno followed up and shot her lightning again at him.

Sona made a water serpent and launched it at him as well. The smoke cleared, and Acnologia was standing in the same position with no damage. "How is he not damaged at all?" Sona asked.

Acnologia looked over at Saji. "You hold a dragon inside of you." He clenched his fist as hard as he could.

Acnologia ripped his arm free from the absorption line, and he covered his fist in the blue energy striking Saji in the torso making an explosion and completely making him vanish from existence.

Sona's knees felt weak from what she saw. She fell on her ass and looked at the horror in front of her.

"Is there no one in this world that will bring a worthy fight?" Acnologia asked himself.

"There is no Dragon Slayers, there is no Zeref, and most of all...there is no E.N.D! So why are you all trying your hardest since you can't do anything?"

Issei clenched his teeth and looked at Acnologia with eyes of hatred. "I don't give a damn about your little Dragons or anything else you said. All I care about is me stopping you here and now!"

[Boost Boost Boost]

Issei charged at him again punching him with his full strength. Acnologia was fazed just a bit after the attack. He grabbed Issei's Boosted Gear and clenched it putting major cracks in it.

"AHHHHHHHH!" Issei fell to his knees. He let him go and moved his hand in front of him.

"Last time you're little girlfriend stopped me from killing you, but now, I will obliterate you and every last dragon there is." Blue energy appeared in his hand and was about to turn Issei into ash until Acnologia got blasted away.

Both Sirzechs and Serafall appeared in front of Rias and Sona. "What are you doing here brother?"

"I have felt his power down in the underworld Rias, I and Serafall have arrived to take you both back," Sirzechs said as he kept his focus where Acnologia flew.

"I will not let my Sona be in danger as well," Serafall announced.

Sirzechs made a magic circle, and everyone teleported to the underworld. The barrier came down and it went back to normal like nothing ever happened.

Acnologia was laying down in a patch of grass far away from the school. He had a small smile on his face.

"It seems that there are some who are worthy in this world."

Scene Break

"Take Kiba to the infirmary quickly," Sirzechs told his guards. The guards came over and grabbed Kiba's body and started taking him to the infirmary.

Sirzechs went over to his chair and sat down. He looked over at the group with narrowed eyes. "Rias, I presume that man was the Black Dragon of the Apocalypse you spoke of?"

Rias only nodded.

"What are we going to do Sirzechs?" Serafall asked.

"We don't know anything about him except that he calls himself the Black Dragon of the Apocalypse or the True Dragon King."

"My lord? Do you think he is one of the five Dragon Kings?" Tsubaki asked.

Sirzechs brought a hand to his chin. "I'm not too sure, but what I am most confused about is his magic energy. I have never felt anything so dark or...dead."

"But the weird thing is he never tried going for us. He only wanted Issei and Saji. He also said that every dragon in the world will perish as well." Rias said.

"But why is he targeting dragons only? Why does he hate them so much?" Akeno asked.

Rias looked over to Akeno. "I wish I could answer that. But every time we ask him why he always leaves and doesn't say anything."

"Does he work for a faction?" Serafall asked.

"I don't think he does. He killed a Fallen and a member of Sona's peerage," Rias said.

"Could he be working for the Angel's?" Tsubasa asked.

Sirzechs looked over at Tsubasa. "No, he wouldn't be working for them since his power is full of darkness and death. The Angel's wouldn't bother recruiting anyone like that."

Issei tapped Rias's shoulder making her turn around. "Uhhh, who is that?" He pointed at Sirzechs.

"Oh, that's my brother, he's one of the four great Satan's." Issei's mouth went wide open.

"Ah...ah...ah." was all he could muster out.

"Rias, Sona, I want you both not to go back to the human world until we have dealt with the problem."

"Bu-"

"There are no buts. And as for your schooling, it will be finished here in the underworld."

Rias couldn't say anything back to him.

"Wait, What about my parents? They're back in the human world still," Issei said.

"I will have some of my best men protect them," Sirzechs reassured.

Issei thanked him for that. "Now, what will we do about our little Black Dragon?" Serafall asked.

"We can't do anything right now. We will have to wait until he becomes weak or if he runs out of power."

"But brother, his brute strength alone cracked Issei's Sacred Gear. He didn't even use magic power what so ever."

"I will speak to Ajuka about this, but for the meantime, you will stay here and not go to the human world what so ever. Am I clear?"

"I understand," Rias said with a depressed voice.

Sirzechs stood up from his seat and left to go find Ajuka.

"Listen up everyone, I want to find this man and kill him myself. I don't care if you help me or not." Sona declared.

"Now now, You're not going anywhere Sona. You will stay here until we have a plan." Serafall said.

Sona clenched both of her hands. She looked at her sister dead in the eyes. "I will find him, and I will erase him and his attitude from this world."

"Your anger is making you like this. You need to calm down. Come give me a hug." Serafall tried to hug her but Sona pushed her away and left Sirzechs office.

"I will go speak with her," Rias said as she left the office as well.

"All we can do now is hope that this Black Dragon doesn't join up with someone," Akeno said in worry.

"Indeed Akeno, indeed." Serafall agreed

Scene Break

Acnologia was deep in the woods resting. He was sitting down on the ground with his back against a tree. He had his right knee up with his arm resting over it.

He had his eyes closed and was slowly drifting off to sleep until a familiar smell came across his nose and he opened his eyes.

Acnologia didn't move from his spot. He waited for the thing to come closer to him.

A person jumped down from a tree in front of him. "Nya, what do we have here." A woman wearing a black kimono with a yellow obi. She had cat ears and two tails.

"Another cat. It seems that you're more mature than the other one." Acnologia said in his cold voice.

"Other one? What do you mean?"

Acnologia didn't say anything else to her. He stood up and started to leave until the woman got in front of him. "Where are you going? We haven't fully introduced ourselves now, have we? Nya."

"Get out of my way before I erase you from existence." He said as he walked passed her.

But the cat lady didn't take no for an answer so she got in front of him again. "Well if you won't introduce yourself then I will. I am Kuroka. You must have heard of me from somewhere."

"No, and I don't care what your name is. If you get in my way one more time then I will obliterate you here and now." Acnologia walked past her again.

Kuroka got in front of him again. She had a huge smile on her face. "Come on mister. Are you being for real? Have you really not heard of me what so ever?"

Acnologia covered his fist in blue energy, and he tried punching her but she jumped out of the way making him punch a tree and obliterating most of the area around them.

Kuroka was surprised to see the area around them completely gone just from a single punch. She landed further away from him. "Aren't you a little mad, Nya."

"That's enough Kuroka. You're not gonna even be able to scratch him." A man with silver hair appeared.

"Nya, Vali? What are you doing here?"

Vali looked over at Acnologia. "I was looking for you but it seems you found someone here."

"Another dragon has appeared before my eyes. I will annihilate you and bath in your blood. I am the Black Dragon of the Apocalypse and I will slay you."

Acnologia covered himself in his blue aura. He appeared in front of Vali and punched him across the face making him fly across the woods with extreme speed.

Kuroka's eyes were wide at what he just did to Vali. She was blushing a little as well from the power this man was unleashing.

Vali hit his back against a tree, and he spat out saliva and blood. He stood up and activated his Divine Dividing Balance Breaker.

He flew through the woods and punched Acnologia in the face a few times.

[Divide Divide Divide]

"Taking my power huh?"

Acnologia punched Vali across the face making him almost fall to the ground. Vali tried to punch him again in the face but he missed.

Acnologia went for another punch but Vali flew up in the air. He spread out his wings.

[Half Dimension]

The area around them started to shrink and shrink. Acnologia smiled a little at this. He covered his fist in blue energy again and launched into the air punching Vali in the chest knocking him out of Balance Breaker.

Vali fell to the ground. He was struggling to get up. Acnologia landed in front of him.

Kuroka tried to help him out but Acnologia gave her a death glare that made her stop in her tracks.

"If you kill me now...you don't k-know what w-will happen t-to this world," Vali said as he was struggling to breathe.

Acnologia raised his hand in the air. "My wretched grandfather will destroy you al-" Acnologia thrust his hand down inside of Vali's chest and ripped out his heart.

He squeezed the heart in his hand making some of the blood go on his face and arm. He threw the heart to the side and walked away from Vali's dead body.

He wiped the blood away from his hand and face, he stopped to look at Kuroka's tails and ears. 'Could it be possible that in this world there are exceeds but in human form?' He thought.

Acnologia didn't put too much thought into it so he turned around and left.

Kuroka fell on her ass. She still had the blush on her face from the beginning of the fight. "Black Dragon of the Apocalypse huh? What a dangerous man."