Akina Kitamura is a college senior and captain of the club volleyball team, done with love after a devastating breakup. While Miki, her identical twin, insists that she just needs to get back in the game, Akina isn't so sure. That is until she meets Cassius, a spunky outside hitter new to school with a killer smile. Slowly but surely, Akina finds herself drawn to Cassius despite knowing that their time together is limited with only one year of undergrad left.