Kojirou Kamikita

Kojirou Kamikita (神北 小次郎 Kamikita Kojirou) is the grandfather of Takuya Kamikita and Komari Kamikita.

Biography
Kojirou is an old man in a nursing home Komari and Riki volunteer at. He has trouble keeping his room clean. He is Komari's grandfather, although this is revealed later as he refused to tell Riki about his relationship with Komari. He is actually escaping from Komari, after she becomes insane for the first time and treats him like her dead brother.

Etymology

 * The name Kojirou means "small" (小) (ko), "next" (次) (ji) and "son" (郎) (rou).
 * Kojirou's surname Kamikita means "god" (神) (kami) and "north" (北) (kita).

Quotes

 * "Go out and do it again! Ask for permission with a loud, enthusiastic voice. If you sound like a punk, even better!" -  (Episode 05)