i don’t think he’s oblivious, i think he’s trying to make hamura jealous on purpose ready_player_1
I don't think that's the case personally, it looks like jin genuinely can't understand why Hamura is acting like that, and kissing another dude in front of Haruma crossed the line into cheating, not a way to make him jealous
I’m so done with Jins obliviousness like I can’t