Kumatetsu wears a fundoshi in some scenes, showing his buttocks. He also takes his shirt off, showing his chest.

Kyuuta also wears a fundoshi in one or two scenes, but he's only a kid.

Iouzen takes his shirt off in some scenes.

Kyuuta has a girlfriend, but they don't kiss or do nothing sexual.

When Kyuuta says "it's my first time", Tatara laughs and repeats the phrase. This can be interpreted like a sexual innuendo.

The movie is more intense than violent, although it has some violence.

A lot of punches between different characters. Some of them are quite violent.

In the first fight between Kumatetsu and Iouzen, Iouzen punches Kumatetsu and he bleeds from the nose. He's shown with blood some seconds and later he cleans it.

Kyuuta gets injured in his cheeks, showing some blood. We later see him with the wound all the rest of the movie.

Kumatetsu starts bleeding, and is shown that Ichirouhiko threw him a katana. He later introduces deeper the katana and Kumatetsu is shown with the katana in his chest and blood in the floor various times. But he's later shown in a hospital and gets better.

Ichirouhiko makes explosions in Shibuya, Tokyo, but nobody gets hardly injured.

Is mentioned that Kyuuta's mother died.

Occasional use of 'shit', 'piss', 'damn' etc. Some name calling between characters.

The English dubbed version has no use of the words 'piss' or 'shit'.

Kumatetsu is drunk in a scene.

Although it looks family-friendly and it has humour to make it lighter, it can be intense and frightening.

Ichirouhiko is very creepy.

There are some semi-jumpscares.

Some scenes like the first battle between Kumatetsu and Iouzen and "the battle" in Tokyo are pretty intense.

Some emotional moments.

The Darkness of Kyuuta is quite creepy.

Some intense moments of the real life are shown.

Ichirouhiko creates a very big whale.