mid au when u could've just given us regular kind gentle kaya now we get a possible deranged evil version thats gonna waste more chapters with pointless dialogue when we know hes gonna kidnap her
so basically usopp's dead. maybe he died earlier to kuro saving kaya or something. then kaya got a Kyōka Suigetsu devil fruit. used it to create a not real usopp like Mavis from fairy tail with her dead friend.