I Turn into a Mouse

No system Rats are short-sighted, as timid as rats, and have sinister eyebrows and rat eyes. These are the impressions humans have on rats. When a human being in the 21st century travels to another world and becomes a mouse, what should he do? This article will describe the story of a mouse from survival to cultivation, which is relatively slow. This is my first time writing a novel, please support me. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.