In one scene a girl makes her clothed butt touch another boy's clothed butt, played for laughs.

In one scene one girl eats an ice block in a sexually suggestive way.

this film has a lot of innuendos

Characters fight but not very serious action.

Mostly mild language.

The language and everything else are so mild that it should be rated g.

In some scenes a character appears smoking.

An anthropomorphized appears drinking sake.