Let me explain my question 8u
Years ago, there was a cat we named Buttercup.
She was a gray tabby cat.
She had kittens, Rin being one of them.
Rin grew up and had kittens and Buttercup just disappeared.
Momo came out of nowhere and she looks like Rin, but looks closer to Buttercup and even meows loudly like Buttercup.
Momo HATES Rin.
She's so hostile to Rin and I don't know why.
Rin is the sweetest, most chill, most lovable cat I've ever seen.
Momo will attack her any chance she gets.
I'm very confused because Momo just...HATES her xD