Snagging a new job at Heart Sports' sales department, Kanji transfers to the Tokyo office, where he meets his new colleague Rika and is reunited with his best friends from home-- Mikami and Satomi. Mikami, Kanji, and Satomi have been friends since they were children, having grown up in the same small town. Mikami is Kanji's best male friend and Satomi is their platonic female friend whom both Mikami and Kanji have had a crush on since high school. After seeing Mikami forcedly kissing Satomi, Kanji fell into despair, but quickly developed strong affection for Rika who was always energetic, funny, encouraging and caring.