Wooyobitme's manga / #Ch4(9)

Short bl. Tattoo artist goes on vacation after his boyfriend of 5 years cheats on him. He meets a guy there and has a one night stand. Guy tries to find him because he wants to be with him

Childhood friends believe they are destined mates and will make it official once they receive the results of what their gender is. However they find out that both of them are Alphas, which means they can't be fated. The uke breaks off their agreement and they grow distant. When they are 18 the seme finds out uke loves being treated roughly and is a Masochist, they start to have rough sex.