Masatsugu Nakamura

Masatsugu Nakamura (中村 正嗣, Nakamura Masatsugu) is a 10-year-old fifth grader and the only son of Masamichi Nakamura.

Appearance
Masatsuga has black hair and gray-ish eyes. Although his exact age wasn’t mentioned in the movie, he is supposedly “Less than 10” years younger then Aoi Aioi. Who is around (I believe) eighteen.

Aoi Aioi
Even though there is an age gap, Masatsugu says that Aoi was his “First love”. And that he wanted to be with her when he’s older. It’s quite obvious that he knows who she likes, but that still doesn’t stop him from liking her.

Ps. him and and Aoi would be cute together :)

Etymology

 * The name Masatsugu means "right, proper" (正) (masa) and "heir, succeed" (嗣) (tsugu).
 * Masatsugu's surname Nakamura means "middle" (中) (naka) and "town, village" (村) (mura).