None.

Some action violence. Characters get killed.

A character is placed in an Iron Maiden torture chamber and the door is shut, the door opens eventually and the man falls out with his body covered with blood.

A group of men heat up a metal back plate and later place it on a characters back. They keep it on for a few seconds then take it off revealing his severely burnt back.

A character throws multiple daggers at a characters bare chest, blood is shown.

Some language like bastard is used once.

In the English dub, there is one use each of "h----, "d--- you!", "My G--!" and "God----".

Some drinking.

An unconscious character is hung by chains and later the group who hung him write it off as a suicide.

2 men pierce a needle up a man's nose slowly. The needle pierces through the man's brain (not shown) and he dies with both eyes open.