Wang Ping's foster mother, Chen Qingmei, lay quietly in her bedroom, clean and tidy, without any peculiar smell. Due to bed rest all the year round, the old man's legs are swollen and his weight has increased to 80 kilograms. Wang Ping began to take care of her mother before 7 o'clock every morning, helping her dress, change diapers, brush her teeth and scrub ... At night, she soaked her feet and wiped her body; In order to prevent her from catching cold, she often gets up frequently.