
Its bl manhwa. The seme is a barber/hairstylist. Uke have sensitive hair/head. Uke got horny everytime he go to barber.
Secret inside my head
https://www.mangago.zone/read-manga/secret_inside_my_head/
That was a frustrating read, I can't even finish the whole thing. I have a friend who is in a pretty similar situation to minwoo. She liked her guy bestfriend for 3 years, the guy knew but never like her so he just let it be. Until the guy decided to get married to someone else, a few months before the wedding my friend decided to get over her feeling and told him that she like him, and that she want to cut him off of her life now bcs he is getting married. Now a few years later the guy still trying to contact my friend or just asking to hang out together. But my friend is so done with him, she just keep ignoring him.