Mongrel

Wataru and his younger brother both grew up practicing gymnastics, following in their parents' footsteps. Early on, Wataru was the more skilled of the two, but over time, his younger brother's superior talent became evident. The younger brother is now selected to compete for Japan in the Olympics, while Wataru struggles with uncertainty about his own future. To cope, Wataru joins a kickboxing gym, initially only to manage stress. Through training and interactions with fellow gym members and competitors, he starts to realize that dedication and effort can be more important than natural ability in the sport of kickboxing.