Help me find this yaoi Webtoon, I don't know. Much about it because I haven't read it yet,...

Help me find this yaoi Webtoon, I don't know. Much about it because I haven't read it yet, but the seme is from gang or. Mafai or. Loanshark I think, iam not sure, he wears beach clothing has black hair, he have sex or kiss the uke i dont know but later saw the uke. In school uniform, I think this takes place in an island