It’s been five years since Naoyuki’s accident. Since then, Naoyuki has been living with Sumi-sensei, and has sensei at his beck and call. Literally. Attached to Sumi-sensei is the cell phone that always answers Naoyuki’s calls – no matter the time or place. Of course Naoyuki’s neediness does not go unnoticed by Kuma-sensei, a doctor who often works the same shifts as Sumi. Kuma-sensei grows angry at Naoyuki’s selfishness, and has no qualms about lecturing him about his behavior. It’s understandable that Kuma-sensei gets upset, since every time Sumi-sensei rushes to Naoyuki’s side, guess who’s left to take care of things?!