When Youyou is welcomed back to the Pei family, she rides on Xiaohuihui—an animal looking like a wolf on the outside but loving to act spoiled—carries a coarse cloth bag on her back, and enters singing. Adorably naive and gluttonous, with astonishing strength, she can also understand animal speech, using red envelopes and kisses to comfort her proud fourth older brother, stunning relatives with square dancing and Henan opera, saving young master Ying Wuyang of the Ying family, and successively taming animal partners like Xiaohuihui, the proud ginger cat Weifeng, and the infatuated hamster Xiaobaibai. The four brothers of the Pei family—steady eldest brother Pei Tingjun, scientific research tycoon second older brother Pei Huaijin, movie star third older brother Pei Qingzhou, and tough-talking soft-hearted fourth older brother Pei Muye—are gradually wrapped around this little milk tot's finger.