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

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?