Early one morning, the protagonist Koichi finds a man collapsed at his front door. It is his only son Ryoji, who has been out of touch for the past 5 years. His wife Akiko is concerned about their son’s health, but Koichi curses him as a "loser." Koichi is disappointed with his son, who didn’t go to university or find a job with a big company, and has come home in an emaciated state. Then, Koichi is summoned to his company's emergency all-hands meeting.