Shy and sweet-natured Zijie spends his time learning the art of fencing and listening to his widowed mother, Ai Ling, sing at a local nightclub. When Zijie’s older brother Zihan – a three-time national fencing champion – is released from juvenile prison, Zijie remains intent upon seeing him, despite his mother’s wishes. As Zihan starts mentoring his younger brother, their bond strengthens. But as Zijie develops newfound skills as a fencer and a romance with his teammate blossoms, Zihan’s innocence becomes more questionable.