Xia Yu, a serious melon-eating girl, accidentally adopted a black cat. Mr. Cat is also a serious cat who eats dried fish. Xia Yu said that she was shocked, her cat would turn into a beautiful little brother! Cat Master said, I decided that she will be my master for life. Xia Yu was confused, hey, what did I just dream about? The story of salted fish and cat, a story related to dreams, a story traveling in the mind. One dream is one world, one dream is two worlds, one dream is three... Cat Lord: Damn it, are you trapped in a dream?!