Kengo Yatabe’s mother passes away and his father, who used to be great at kendo, is now in a vegetative state. Kengo was also accomplished in kendo, but he stopped participating in the martial art activity after an incident. Now, he spends his days drinking and working as a security guard at a station building. One day, Tooru Haneda, a high school student who likes rap music, appears in front of Kengo and makes him resume practicing kendo.