None.

This anime has no violence. The only scenes are as following:

Several scenes have characters yelling and screaming. These scenes are mostly made with comedic effect.

A man gets a hot glow on his hand.

Three male characters appear to be drunkards, hence their strange behavior at a traffic light and some screaming at a telephone box. In this scene, one of the guys mentions about not liking drunkards.

Contains no scenes which could be scary for any children.