Zheng Yi has a two-story attic, with people living upstairs and a shop downstairs.
The shop has a foreign name, called Exotic Pet House. To put it bluntly, it sells mice, including hamsters, guinea pigs, and chinchillas. Zheng Yi is truly a big rat farmer. Ignoring Zhang Xueyang's harassment from time to time, his life was quite comfortable, but one day, Zheng Yi woke up from his dream, and a handsome brown-haired boy straddled him and shouted at him: "Keep that female rat away from me!" Zheng Yi was completely stupid.