Omegaverse

Kei is an Omega who dreams to be married to a rich, handsome and kind Alpha. So he polishes his skills in order to become a good bride for his future mate. However, his body is a bit special cause drugs that suppress an Omegas heat doesn't work on him. So he relies on his childhood friend Tsugitsugu who is a Beta, whenever he is in heat. How long can Kei keep this relationship with Tsugitsugu?

Yuka is childhood friends with the timid and quiet Kaoru. After they got into middle school Yuka decided to ignore Kaoru. But when the time for the gender examination come, things to change.