Kusottare Beibi

Omega Hotaru and Alpha Eiji are childhood friends and college students, where fighting is a greeting. One night, when Eiji goes to Hotaru's room, he sees him hugging Eiji's clothes while he's in heat! "What's this guy like when he's in heat?" Inspired by their instincts, the two end up having sex..? A childhood friend-loving couple, their love is in full swing, fueled by pheromones!