Attack On Highschool DxD

Side Chapter: Eren's Birthday

A/N: The day I release this will be march 30th, Eren's birthday. So I wanted to make a chapter dedicated to that. It'll take place before the events of the past three chapters.

Eren woke up as he sat up in his bed. He looked at his calendar and saw it was March 30th, his birthday. He sigh and thought 'I hope no one remembers it's my birthday.' He got up and put on his clothes. When he left his room he went downstairs as he smell breakfast being make. 'This brings me back memories' he said in his head, as he remember his parents making his favorite breakfast on his birthday. Actually right now, he was smelling the exact same smell.

He looked in the kitchen and saw Issei struggling to cook breakfast while wearing an apron. "You need help?" Eren asked, surprising Issei. "E-E-Eren!? You're already up!?" Issei said, as he was hiding his cooking behind him. "What are you doing?" Eren asked him. "N-Nothing!" Issei said, as smoke was being form behind him. "Theirs's smoke behind you" Eren said, as Issei turn around to put it out. "Let me guess, you're trying to make the same breakfast Mom and Dad use to make me for my birthdays" Eren told him.

Issei sigh and said "Yeah. They called me and ask me to do it. They said they should be here later to celebrate your birthday with us." Eren went to see Issei's cooking and to be honest, it wasn't bad. It was a little burned but besides that it look like the same thing his mother would cook him. Issei served it to Eren as the others were finally coming after waking up.

They could smell the breakfast Issei cook him and see him wearing an apron. "Oh, did you cook breakfast for us Issei? How nice of you" Rias told him as she gave him a kiss on the forehead. Issei chuckled nervously and said "Um, actually. I only made breakfast for Eren."

"What? But why only Eren and not for all of us?" Rias asked. "You see, today's Eren's-"

Issei turn and saw Eren giving him a death stare, a signal for him not to tell his friends it was his birthday. "Today is Eren's engagement party" Issei said, struggling to think of what to say. "What!?" everyone said, as Eren smack his forehead. "E-E-Eren's e-engagement party!? Who is he marrying!?" Rossweisse said as she walked up in front of him. "Who is it!? Is it Irina, Serafall, or that girl Mikasa!? I knew it you guys were getting too close!" Rossweisse said as tears were forming in her eyes. "Well you can't marry her, because I'm pregnant and you're the father!"

Eren sigh and said "You can't be pregnant because we have never slept together. Also I'm not engage."

"Then, what day is it?" Kiba asked as Xenovia remembered it. "Oh, it's your birthday!" she said, making everyone surprise and Eren giving her a death stare. "It's your birthday!?" everyone said. "Why didn't you tell us it was your birthday? We should throw a big party for it" Rias said as Eren shook his head. "I don't want a big party. A simple cake is all I need, that's it" Eren said.

"We can't have that. You're my future brother in law, I want to throw you a party" Rias told him as she got out her phone. She started texting someone and Eren asked "Who are you texting?" Rias gave him a smirk and said "You'll see." Suddenly a teleport circle appear in their living room as Sirzechs and Serafall came from it. 

"Happy birthday Eren" Sirzechs said as Serafall ran up to him, giving him a hug. "Happy birthday my future king!" she told him. Eren was getting uncomfortable as he said "Why the hell are you guys here?"

"Rias wants to throw you a big party, so we're here to help" Sirzechs said as he looked around the Hyoudou mansion. "I think this place is big enough to have a big party" he told them. He turn to Eren and said "Can someone take Mr. Jeager out of the house for a while?"

"I'll do it!" five people said at the same time. It was Issei, Irina, Xenovia, Rossweisse, and Serafall. "Issei, shouldn't you stay and help with the decorations?" Rias asked him. "Aw, but I want to hang out with Eren for his birthday. We use to have this thing we would do on his birthday where we would go to certain places" Issei explained to them.