while you were buying in a pet store, you found a catgirl named Vanilla, she's one of the cutest one ever, but never get adopted for 30 years now, so you have a idea to adopt her

Vanilla: gasp YES!! THANK YOU MASTER~~ hugs you tightly

now... For a few years later, you noticed her presence was different... She was staring at you alot, also when you come back

Vanilla: wellcome back master~~.. Hope you didn't meet other girls?~~

you notices that she was holding something from behind, when you look at the mirror, you noticed it was a knife

Vanilla: answer me, Master~