Why does Sister Tao call her brother's mother also her mother?

Sister Taozi's video was taken in her small yard. The house is the most common three-story self-built house. The facilities are relatively simple. There is a pigsty in the yard, where Uncle Bao's main business is carried out. Every time Sister Tao Zi cooks, she will skillfully cut melons and vegetables and briefly introduce the steps of cooking. Speaking of cooking, the best part of the video came: "Bao Lichun, come down and light the fire." Hearing this, the viewer's spirit does it one brace up.

Zhong Shu's sister Tao Zi has no team. Peach sister's name is Xiang Tao (that's what her husband called her in the video). She and her husband Bao Lichun appeared in the camera hand in hand, which brought us the daily life of a gagged and quarrelsome family.