For many years of marriage, Zhou Mingyuan has always shouldered the main household expenses and repeatedly helped his wife Liu Jing take care of her younger brother Liu Kai. A down payment issue for a house purchase brings the long-accumulated conflicts between the couple to the surface. Faced with account books and family expenses, Liu Jing re-examines the boundaries of family affection and marriage, and Liu Kai also begins to live independently and take on responsibilities. After experiencing friction, the family gradually learns to respect each other and finds their respective positions again.