Shimanaki (played by Toma Izuda), 36 years old, fell in love with coffee after graduating from college, and started a business because of it, but ultimately failed and became an unemployed dependent.Although he also wanted to change his heart, he always relied on his "strong point" - his special ability to never admit defeat in a verbal argument, and used fallacies and sophistry to conceal his decadent life.Sister Ayako (played by Koike Eiko) believes that her brother’s fallacy is nothing more than a “simple escape from reality” and questions her mother Fangzhi (played by Harada Mijiko), thinking that her brother becomes like this and her mother is also responsible.My mother was poked into the sore area and her heart was shaken.Five years ago, after some twists and turns on the shore, he became the secretary of a county council member, but was soon fired.So, he returned to the mother who was parasitized by the coffee shop and continued to live a life of a leniency among his parents.However, at this time, news came from home about the sale of coffee shops and hometown.After the family gathered again and started a sophistry war of verbal battle, can Man get rid of his useless life and move towards the road to independence?