Leaning on each other through thick and thin, a trio of best friends stand together as they experience life, love and loss on the brink of turning 40.

Taira Kei has a talent for contemporary dance since he was young and went to study in Germany to join a dance company in his teens. He has won several international competitions and was referred to as a “prodigy”. However, he encountered a setback in the middle and got frustrated. He returned to Tokyo and takes a part-time work while he tries to re-capture his dream.

Nishihara Yui is a Chemisty teacher in her 30s, working at a prestigious high school. Even while continuing a love affair with a married colleague, she was still lonely until she meets Kei and gets swallowed in passion.