Mystari's manga / #Yandere Seme(2)

Sadaki Kaoru, an earnest professor who comes from a prestigious academy, hides in his heart the one-sided feelings he has for someone. One day, thanks to drawing the attention of the school troublemaker ‘Shou, the informant’ his secret is revealed. In exchange for Shou’s silence, he’ll have no choice but to have sex ‘till the point of exhaustion.

Shoukichi is a stylist who struggles with being unpopular due to being unfriendly and overly serious about everything. Fukusuke, a top stylist who is frivolous and sarcastic, starts working at Shoukichi's salon. These two guys are like oil and water, constantly fighting due to their different work styles. But when Shoukichi becomes the target of a stalker, Fukusuke does his best to protect him.