Tokagerou

Tokagerou is a 600 year old spirit from the same time as Amidamaru. He was a thief who was eventually killed by Amidamaru and because he wanted revenge he was not able to pass on. Because of his hatred he eventually turned his skin lizard green. During his life time he became infamous and even gained his own fighting style called Tokage Kenpo (Lizard Style). He always calls himself a nasty villain but is in reality a big softie who only misses the comfort of a mother's care.

When he was alive, Tokagerou was a thief that was born into poverty. Tokagerou was forced to eat his own dead mother to survive. He then became a thief ambushing people. An ancient bandit, he stole everything—money, food, lives and even more so. He led a horde of bandits who terrorized the area 600 years ago.

There was a hill Tokagerou and his group used as a hideout, but one day Amidamaru passed by and was ambushed by them. However, being the stronger one, Amidamaru killed Tokagerou and his group.

In the modern age Tokagerou attacks Asakura You and his friends in order to get revenge on Amidamaru, who does not recall him at all. Through Kyouyama Anna research, they learn that he is an obscure historical figure who was killed by Amidamaru. Tokagerou possesses Yoh's friend Umemiya Ryuunosuke "Wooden Sword" Ryuu and uses him to steal the Harusame (Sword of Light) from the museum and attack You and Amidamaru. The fight that ensues forces You and Amidamaru to break the Harusame in order to save Ryuu's life.

You appeals to Tokagerou and allows him to possess him instead of Ryuu, who is just an innocent bystander, because You believes that Tokagerou is not as evil as he claims. Togakerou does so, with the supposed intention of killing You in the process, but finds he does not have the heart to and leaves You's body peacefully.