The ultimate devil.-highschool dxd.(Rias x oc reader) (Completed for now)

chapter 1:the hero vs. The fallen Angeles.

Toad was walking to an old building assuming it was empty and decided to enter.

Toad: man this place in friggin old as fuck. But I guess beggars can't be choosers. At any rate I'm exhausted time to take a nap.

As Toad was sleeping soundly a door opening can be heard and he woke up to find two girls in front of him.

Toad: oh sorry to drop in unannounced. I was worn out from classes so I decided to take a nap here. Names Toad Skywalker by the way.
Rias: my name is Rias Gremory. And this is Akeno Himejima.
Akeno: hey there cutie. *giggles*
Rias: AKENO! Stop flirting with him! So when did you arrive here?
Toad: just today actually. I already started to attend classes here. And truth be told I don't have a home here. Think you two can help me?
Rias: I think we can make arrangements for you.
Toad: hehe super sweet. So where will I be living?
Rias: at my mansion in hell.
Toad: exsweeze me? Did I hear that right? Did you say "hell"?
Rias: I did. It's more comfortable than you think.
Toad: oh. Sorry. I sorta imagined hell to be a fiery inferno.
Rias: are you practicing any religious factions?
Toad: what? No!I'm an atheist through and through! Why'd you asked?
Akeno: you may or may not know we're devils.
Toad: yup. Totally saw that coming. So let me guess, you want me to join your peerage and become a devil?
Rias: that would be beneficial yes.
Toad: eh. I got nothing to lose. I got nothing better to do with my life anyway.
Rias: wise choice. You won't regret this decision.

Rias then put a pawn piece inside Toads chest.

Rias: welcome to the Gremory household Toad.

(Timeskip: 1 hour later.) at the Gremory household.

Toad: damn this place is hella huge!
Rias: it's roughly the size Japan. This whole area is owned by the Gremory house.
Toad: seriously?! Man New York's got nothing on this!
Rias: oh? Have you been to New York?
Toad: born and raised. Though I had to abandon the accent. Which sucked because I liked the accent.
Akeno: we've arrived at the mansion.
Toad: niiice. It's better than my dad's mansion that's for damn sure.
???:welcome home lady Rias.
Rias: thank you Grayfia.
Grayfia: who's this young man?
Toad: yo wazzap? Names Toad Skywalker. I'm Rias new servant.
Grayfia: *bows* my name is Grayfia. In service of Sirzechs.
Toad: uh...who?
Rias: my brother.
Toad: oh!makes sense.
Random butler: lady Rias! We have a problem!
Rias: what is it?
Random butler: fallen angels have infiltrated the barrier. We can't hold them off for much longer!
Rias: damn!we got complacent. Akeno!
Akeno: on it Rias.
Toad: hold on! Let me handle this.
Rias: can you fight them by yourself Toad?
Toad: they're about to learn what happens when you mess with the ultimate life form the hard way.

When he approached.....

Fallen angel 1:who are you and why didn't we detect your presence?
Toad: I was hiding my power level numbnuts!
Fallen angel 2:doesn't matter! We'll kill you!
Toad: heh! Good luck with that! I'm about to open a can of whoopass on you birdbrains!

The two fallen angels charged at him with spears of light but they just bounced right off.

Toad: is that the best you can do? I have a dead grandmother that hits harder than you!

He launched one final attack and they were vaporized. He then descended down and he was greeted by a hug by Rias.

Rias: you were amazing Toad!
Toad: Hehe I came I saw I kicked there asses! Donkey smell donkey smell!
Grayfia: I must say you've impressed me.
Toad: I do stuff like that everyday. No big.
Grayfia: I will show you inside. Please follow me.

When they went inside the mansion. They were greeted by a small boy with the same hair and eye color as Rias.

???:welcome back Rias!
Rias: hello Millicas.
Toad: who's the kid?
Rias: he is the son of my older brother Zechs.

However they were also greeted by an older woman.

???:welcome home Rias. *notices Toad* and who might you be young man?
Rias: he is my newest pawn, Toad Skywalker.
???:my what a handsome young man. And a real gentleman. My name is Venerana Gremory. I'm Rias mother.

End of chapter 1