Omega kunimi x alpha aoba johsai x Luna reader

So I kind of got this idea from this other story and I wanted to put my own twist on it.

So what if kunimi had a twin sister and and she was a Luna and kunimi was a omega.

When kunimi and his sister go to Aoba Johsai they enter the volleyball club.

Kunimi's sister becomes the manager for the team. When they go to a camp the volleyball team will be push to the limit.

They will be tested on if they can protect their omega and Luna from the others. Or will they lose them both.

"We will protect you Mavis. So you don't have to worry." Mad dog says to you.

"Hey, what do you want with our omega and Luna. Huh?" Iwaizumi said to ???.