Satan's first born

Rebirth of an old nemisis

In the large castle that belonged to y/n a group of maids are seen walking towards two large doors

Maid : miss miki why are we preparing the castle in such a manner , could there be a party happening

Miki : something like that master y/n is now the original head of the lucifer family so we have invited the lucifer family members to be present

Maid : but knowing their current members I don't think it will go well

Miki: we can just wait and hope that isn't the case

Location change- ???

In a small unknown city , large amount of smoke can be seen rising into the sky fire trucks drive at full speed towards the smoke which was coming from a building

Fireman 1 : what is the cause of this fire

Fireman 2: I don't know reports say it just started out of no where

Fireman 1 : the smoke is so dense I can barely breath properly

The duo firemen make their way as backup was called , soon the smoke began to blind them

Fireman 1 : Bobby where are you

Fireman 2 (Bobby) : I'm here Carlos can you see anything

The fireman didn't get a response he began to panic but as he tried to find a way out he ran into something

Fireman 2 : I can't see anything I'm even running into Wa—

The man was cut short as his head was sent flying And standing in front of the corpse

??? : the human realm my my , to think I the immortal phenix would be reborn here

The man then begins to scowl which caused the fire around him to rampage

??? : that damned lucifer family to choose him to be arranged to her when it's clear I'm the superior being

The man then vanishes into flames

Location change- kouh academy

In kouh academy issei is seen hugging a blushing Asia as rias and akeno is seen working on papers Suddenly a voice is heard near the couches

Y/n : hello

The orc froze out of fear before looking at the couch As they see y/n rias and akeno gain a visible smile

Rias : good evening y/n how are you today

Y/n : bored but I felt an energy coming from the human world but I can't pinpoint it anymore so I just came to visit

Akeno : oh was this energy hostile or friendly

Y/n : it felt similar to someone my father once associated with but it also felt different like it was still growing and developing

Rias : I've never heard of  demonic energy or mana like that

Y/n : because it wasn't normal demonic energy without a doubt , it had glimpses of hero aura and flame emitting from his mana

Rias : riser

Akeno : you could sense all of that

Y/n : yes can you not ?

Akeno : I don't think anyone can

Y/n : I see

The orc sweat drop at his bluntness

Y/n then looked at the window

Y/n : I wish to ask you for assistance if that's alright

Rias : you've helped us before so it's alright

Y/n : back when I was sealed I wasn't the only one six others were also placed in a seal And one of those was someone that is important to my family apparently , normally I would not ask for help but I know nothing of this new era

Rias : i see we can help you find this person and we will also teach you about this era aswell

Y/n : devils are much different from before back then uncle would make me kill a member to show dominance

Rias : please don't do that anymore

Timeskip - the next day

Issei was sitting in class with his mind on one thing

Issei : * I really want to see some boobs right now

Soon the teacher came on.

Teacher : today we have a new transfer student

Random female student : I hope it's a cute boy

Male student : please be a smoking hot girl

The door opens and someone walks in

(Currently Without his tail or horns )

Y/n : hello , my name is y/n l/n

... To be continued..