I'm just a little mouse after all [Comprehensive British and American]

The character on the cover is a cat. After a little mouse goes home from relatives, he finds that the house is full of policemen. The owner and his family are all dead, and the stupid cat is missing.The little mouse takes a human helper on a journey to find the stupid cat.The cat sleeps, wakes up and suddenly becomes the pet cat of a serial killer.A certain decathlon cat: Wow, that's exciting. 1v1, HE, cat gong x mouse receiver profiler, comprehensive British and American dramas.The mouse has a system, and both sides can change people in the later stage