Computer engineer Otaku, a shy and awkward young man, saves a pretty woman from a molester on a commuter train, falling for her at first sight. He receives a thank-you message and a set of Hermes teacups, prompting him to seek dating advice from his BBS friends under the codename "Train Man". With their support, he undergoes a makeover for his first date, unknowingly sparking an Internet phenomenon.
(Source: MyDramaList)
