The Daikenja (双黒の大賢者), also know as Double Black Daikenja, was the adviser of King Shinou. He lived 4000 years ago during Shinou's time. His real name is unknown.
4000 years ago, he went to Earth with Inferno on the Tundra and Mirror's Depth. Since then he's been reincarnated many times and he has retained many of his memories from his past lives. His soul is currently Murata Ken.
Differences in anime
In the anime, it seems he did not immediately go to Earth and had another reincarnation in the other world by the name of Jeneus.
- In Chapter 77, Murata Ken said that the Daikenja and Shinou weren't exactly "best friends". This could be a hint of the fact that they probably were half-brothers, or in any case, lovers.