Our omega (todobakudeku omegaverse/soulmate au) [Book 1]

Katsuki and Shouto are alphas and Izuku is an omega and is also a girl. Izuku, Katsuki, and Shouto are all dating. They are also soulmates. All Might is also her dad but not her biological dad of course. All Might is her mother's true soulmate.