After drinking with the members of his college department, Asahi was suddenly invited by Toono Sensei to come to his place. As they enter his home, Asahi was pushed by Sensei to have sex with Tsukasa, an omega who is currently on heat. Asahi being an Alpha couldn't suppress the urge to hold Tsukasa and Sensei was there filming it all on his tape. Now he can’t seem to get himself out of this weird situation.