Attack On Highschool DxD

All Abroad!!

Eren was reading a journal and talking to Zeke. "So, we need to talk to the founder Ymir?" Eren asked him. Zeke nodded and said "Once we meet her, we'll tell her to make it that Eldians can't breed. With that there'll be no one left to be able to inherit the titan powers, and this war will be over."

Eren nodded his head as there door open. "Your time is up" an employee said. The two brothers nodded as they left the internet café. "I'll contact you as soon as we get back from the underworld" Eren told him. "It's weird that they're inviting someone who once use to be their enemy to the underworld" Zeke said. "I'm going because of Issei, I still don't trust them" Eren told him.

Eren was walking by himself when he heard "Eren!"

He turn around and saw Irina and Xenovia walking behind him. "What are you girls doing?" Eren asked them. "We're on our way to your house. We'll also be going to the underworld" Xenovia told him. "Even though I want to be with you guys, I can't. I have to be lord Michael's side" Irina told them. "It's fine Irina, we'll just see you at the party" Eren told her. 

They made it to his house, or at least the place that use to be his house. In front of them was a giant mansion. Eren stood there confuse and said "What the hell?"

"You guys are here!" they heard behind them. They turn and saw Koneko, Kiba, and Gasper. "Who the hell did this to my house?" Eren asked them. "It was the presidents family. They thought that Issei needed more space so that we can all live here" Kiba told him. "Why do they want you guys living in my house?" Eren asked them.

"During the fight with Vali, Issei was able to unleash a lot of power because he thought of touching all the girl's boobs" Kiba told him, making Eren disappointed in his brother. "Sometimes I wonder if I'm really related to that boy" Eren said. The door open and Issei ran to give Eren a hug. "You're here! I'm so happy you decided to come with us!" Issei said. "I'm only coming to make sure they don't do some type of science experiments on you" Eren told him.

"Why would we do that?" Rias asked him. "I don't know, you're devils. You guys do weird stuff all the time" Eren said. "I'm so glad that the Eren Jeager has decided to come with us" Azazel said as he walked up to Eren. "What do you want Azazel?" Eren asked him. "I just want to talk to you before you eaten by Rias's older brother" Azezel said, making everyone give him death stares. "It's fine, I know it's going to happen anyway" Eren said.

"Excuse me Eren, but their is something I need to tell you" Rias said. "All the royal devils would like to talk to you once we get there." Eren stare at her then turn to Issei. "Did you know about this when you ask me to come?" he asked him. "Well, maybe a little" Issei told him. Eren sigh and said "Why do they want to talk to me?"

"Maybe it's because they think a former terrorist coming to one of their major events is a little suspicious" Azazel said. "It's not that, they just want to make sure that everything that happen with them is all in the past" Rias said. "Can we just go before I change my mind?" Eren said as everyone immediately agreed. 

They got to the train station where the brothers were confuse about how they were going to the devil realm. "The last train has already left, isn't that going to be a problem?" Issei asked. "Just follow me" Rias told them. They went to a wall where she scan a card on it. "There's a hidden level underneath this station" she told them as a hidden door was open.

"I was born and raised in this town, and I never knew this existed!" Issei said as they went down an escalator. "It's a route reserved exclusively for devils. Normal humans would never find their way down here" Rias explained to them. "In fact, there's actually a few secret spaces like this around the city that are only access by devils."

"Eren here should know all about that" Rias said, making Issei turn to him. "I may had killed a devil and used his card to go in these secrets places in the past" Eren told him. They got off the escalator and found a huge train there. "Whoa!" Issei said surprise by it. "It's the Gremory family train. All abroad!" Rias said.

They got in the train and everyone sat in their seat. Eren sat next to Issei as he took out a book. "Where's the president?" Issei asked. "The master rides in the first car, while her peerage has to stay in the others. That's the rules" Akeno explained. Eren continued reading his book and writing down notes in it. "What you reading big bro?" Issei asked him. "How to destroy a devil society without being caught."

Everyone looked at him and he said "I'm joking, can't you guys take a joke?" Issei made a fake laugh and Eren said "That's not helping." Issei cleared his throat and said "So, how were your dates?"

"They were ok. Me and Irina went to a restaurant then to karaoke. Serafall got to choose where she wanted to go and she chose an anime convention. To be honest it was fun and I even got to talk to this one guy. I told him a little about me and he said that my life would be a good story to write about."

"What was his name?" Issei asked. "I think it was Isayama something" Eren said. 

Rias showed up and said "Just checking on you guys. Nice to see the brothers getting along." 

"Why? I could be talking to him about betraying you right now?" Eren said, getting stares again. "Do you guys understand the word humor?" he asked them. "Princess Rias, you may communicate with your peerage, but may I prepare the new members for arrival?" asked an old man. "Sorry about that" Rias said.

"Greetings, I am Reynaldo the conductor of the train" the old man introduce himself. "Now then, I will confirm and record the newcomers to your peerage."

"Your information is recorded in your pieces" Rias told them. Reynaldo scan them and said "I've confirmed all of you, which means you're classified to enter the devil realm."

"Thanks Reynaldo, that man is Eren Jeager. He's Issei Hyoudou's older brother" Rias said as she took out a card. "I got this so he can use it. Got it from my older brother."

"Oh yes, Eren Jeager. I had met him before. There was this one time I thought a hobo got in to only find out it was him" Reynaldo said. "What does that card says?" Eren asked. "It only has your basic information. After your meeting with the royal devils, they'll decide if you're ok to have one" Rias told him. 

Eren turn to the window and look at the view. "Wow, this amazing!" Issei said as he look it next to Eren. "Welcome to the Gremory territory" Rias said.