Yukawa is constantly bullied by his classmates until one day, he is saved by a stranger named Nishida Shin who knows Kendo. Nishida begins teaching him Kendo, causing him to become more active, outgoing, happy, and cool. He is also no longer bullied. However, one day aboard a bus, a deranged man begins threatening another man for staring at him, cutting the other man's hair off and dragging him off the bus...