A family TV series adapted from the novel of the same name, it tells the story of the "anxious" life of three generations of grandmothers and daughters in Dazhidong, when Jeong-eun, a hot-blooded working mother whose daughter is about to take the "7-year-old exam", entrusts her mother Ji-ah to pick her up. "7-year-old exam" is a new coined word, in order to send children to a famous English cram school for the entrance test, which will be a pleasant and real extracurricular tutoring scenario for young children.　　Jun Hye-jin plays Lee Jung-eun, a marketer in the beauty industry and a working mother who strives not to delay her 7-year-old daughter's education, Cho Min-so will play Lee Jung-eun's mother, Yoon Ji-ah, Jung Jin-young will play Lee Young-wook, an English professor who has a crush on Yoon Ji-ah, to show romantic acting, and Jeon Seok-ho will play Lee Jung-eun's ignorant husband Hong Jae.