Kana Ozaki (Ren Ishikawa), a 29-year-old dental assistant living in Tokyo, is a hard-to-please woman who denies fate yet still falls into delusions of destiny.

One summer day, Kana goes on a business trip to Fukuoka and falls head over heels for the tall and handsome Hiroki Watanabe (Tetsuya Iwanaga), a medical consultant with high qualifications.