1987年，十八歲的橫道世之介（高良健吾 飾）從長崎來到東京，是法政大學一年級新生。個性純樸率直的他，先後遇上了改變彼此命運的那些人：未上車先補票，不得不從大學休學的小倆口；明明很有才華，卻老是靠著美貌與交際手腕向老男人揩油的跑趴妹；沉默寡言的同性好友卻突然鼓起勇氣向他出櫃；還有讓他初嘗戀愛滋味、天真善良的富家千金……。十六年後，電台播報一則意外新聞，一名攝影師為了救人意外跌落月台，這群友人們同時想起了世之介，心中滿是溫暖的回憶……。

A coming-of-age drama based on a serialized newspaper novel by Yoshida Shuichi. It nostalgically depicts the interactions between a good-natured young man and his friends, while interweaving the past and present. The lead roles are played by Kora Kengo and Yoshitaka Yuriko, who previously starred together in Snakes and Earrings. In 1987, a youth named Yonosuke (Kora) who is unable to decline the requests of others leaves his hometown of Nagasaki to start university life in Tokyo. One day as he is juggling classes and extracurricular activities, he goes to a driving school and meets Shoko (Yoshitaka), the daughter of a company president, who takes a liking to him. An American actor in Tokyo struggling to find purpose lands an unusual gig: working for a Japanese "rental family" agency, playing stand-in roles for strangers. He rediscovers purpose, belonging, and the beauty of human connection.