None.

Despite being made for children, this animated series contains intense violence and battle sequences. Multiple people and animals are killed with objects such as arrows, swords and tree logs, many times with bloody results.

In several episodes, characters are beaten by others. Sometimes, children are beaten.

There may be some mild language and cursing in some episodes, but it's all in Korean.

Occasionally, bad guys consume alcohol and eventually become drunk in several episodes.

This animated show is a North Korean propaganda series. Unlike what you normally see in Western animation for children, this series contains many scenes of intense violence and battle scenes.

In some episodes, characters are violently beaten by others. Sometimes, children are beaten by bad guys. This can be disturbing for younger viewer.