its cause one of kr’s old friends crossfire had a foster cat when kr still lived with wayfaring ,and in their mind, kr became emotionally turbulent when the kitty had to go because it was kinda like experiencing their first grief in this body. itty and bitty just reminds them of it. but now theyre chill about it lmfao

also because itty and bitty really like kr out of the players for some reason, poor kr has no choice but to suffer nearly every single day. also also kr likes things and one of them are cats. its really that the attachment they have to ichor makes ichor a little annoyed