The battle with KEEL is now over, and one afternoon…Sakura doesn't show up at school. Worried, Nirei contacts him and can tell over the phone that Sakura's got a terrible cold. That day after school, Nirei and Suo, representing the first-year class 1, head to Sakura's apartment with a care package. Sakura came from out of town, but what kind of life is he living now? 

Bofurin is able to defeat every member of Natori-led KEEL and safely rescue Nagato.

Ren Kaji and the second-year senpai rush in to save Sakura and the others when a fierce attack is upon them.

Sakura is a high school delinquent who, as a member of Bofurin, has vowed to "protect this town."