Rinsama_'s manga / #Fuck boy(1)

This has a similar vibe to one other manga with an obsessive ex. Our uke is also slutty, doesn't want to be tied down, has multiple fwb. Seme wants to take it srl too and was kinda a virgin lol. Tho uke is less harsh than Suu (I remember his name now omg) and seme is more forward and strict (??). Aku is more mellow (despite also being really persistent) and caring.