Before facing his first heat, Mahiro, a Playboy omega, wants to experience everything life has to offer. When he realizes that Yoneya, a shy and awkward alpha, has a crush on him, Mahiro decides to have some fun with him. Gradually, he starts to see Yoneya's charming personality, but the fact that Yoneya comes from a different world as the son of an elite alpha family makes things complicated.
Included in this manga is a two-part one-shot called "Itetsuku Kousen."