Jumping out of the assistant position of "deeper than the Sea" (2016), Neiko Hiroase inherits his teacher is the missing theme of the branch and the consistent family, and uses his sophisticated narrative skills to open up the thinking space of the father-son relationship. Liu Le Youmi, who became the youngest actor in Cannes with "who knows the Red Heart" (2004), has experienced high mountains and low valleys, walked on the brink of death, and empathized with this lonely character. The suicide attempt was taken in by a middle-aged widower with the same name as his dead son. The delicate relationship between father and son is shaken by the secrets of their past. Can two "missing" lives form a "circle"?