Nagao Kanji (Kentaro Ito) was transferred from the branch office in his hometown of Ehime to the head office in Tokyo, where he met his colleague Rika Akaname (Shizuka Ishibashi). As soon as they met, Rika Akaname's carefree and daring personality left a deep impression on Kanji. Mikami Kenichi (Sho Kiyohara) is Kanji's high school classmate, and now he also works and lives in Tokyo. The two agreed to go drinking together after get off work. What Kanji didn't expect was that at the drinking party, he actually reunited with the girl Sekiguchi Satomi (Anna Ishii) who he had a crush on during his school days. Satomi's appearance rekindled the throbbing flame in Kanji's heart. Kanji found that his wallet was left in the company, so Rika, who was still in the company, brought the wallet to Kanji in the store. Mikami seemed to have a very strong interest in Rika, and the entangled feelings between the four people began.