HELPPP it would be so funny bc chenya is like a full-fledged catboy while nansen is catboy in denial. chenya would nya nya and float all over him and nansen(easily provoked) would like paw and scratch at him but constantly miss 😭😭😭
chenya: just embrace itttt~ you cant fight your nyatural instincts~~
nansen: LEAVE ME ALONE IM NOT A CAT IM JUST CURSED NYAAA

(for the record i would sort nansen into heartslabyul)