Hi guys I used to read this really old Japanese Shounen Ai/Yaoi manga about an older hairstylist (Bottom) x Younger Artist (Top). Since they were
He used to be a shy high school student then the older guy gave him a haircut, their relationship is pretty healthy with the stylist treating him like a younger brother at first.
Then the younger guy got scouted by a model agency or something after graduating, also the artist realize he develop feelings for him (?), the hair stylist even had a crisis about liking him for quite some chapters
There were even side characters who are two older grandpa that loves each other.
Side Note: I even dive so deep I found Moon Trick, Pure Blood & Tsuki ni Hoero again but not this one help me, please.