In this omegaverse being born as a alpha was given most priority in elite families ..Ritsu(17) , heir to the elite Ayamachifamily is diligent & hard working...He has always been devoted since he was the next heir in line..but soon found out that he is not an alpha but an omega...& was sold off by his fucker father to an omega shop (where they are trained to serve better then sold off to rich alphas or work as prostitute) & the no 1 trainer , Misaka Shion has been assigned to train him ..
Korogari Ochite Ame to Muchi