Absolute Anime

Fields	USA Info	Japanese Info	Image
Name	Koenma Daioh	Koenma Daioh
Alias	Master Jericho
Race	Spirit	Spirit
Gender	Male	Male
Age	700+ years(appears 4)	700+ years(appears 4)
Hair	Brown	Brown
Eyes	Brown	Brown
Height
Weight
Status	Does paperwork for Spirit World	Does paperwork for Spirit World
Quote	"Give it all you've got Yusuke!!!"
Voice	Sean Teague(TV)	Mayumi Tanaka
· · ·	Eric Stuart(movie)
Debut
Anime	Yu Yu Hakusho	Yuu Yuu Hakusho
· · ·	Yu Yu Hakusho: Poltergeist Report	Yu Yu Hakusho: Bonds of Fire

The above info came from Tru Gundam, and was edited by yours truly (contact me). The image came from Anime Analyze.

Koenma is the son of Enma Daioh, the ruler of the Spirit World [Rei-kai]. When his father is away, he all responsibilities fall to him. Koenma mostly does the paperwork and gives orders to the Spirit World [Rei-kai] detective. The closest person to him should be George, who is his servant, but he isn't always nice to George. Koenma tends to take his frustration out on him.

Koenma's powers are in his trademark pacifier. Actually, that pacifier gathers his pure rei ki and can be used as a powerful seal to capture dangerous and strong Youkai. This seal is called "Evil Sealing Ring". A funny note: Koenma always changes his looks when he goes to the Human World [Ningenkai] because he doesn't want people to make fun of him. He transforms into a very nice looking young man, but always keeps the pacifier. Koenma is actually hundreds of years old, but he looks like a 4-year-old kid.

Sometimes Koenma doesn't just LOOK like a kid, he can act like one too... especially towards George. But as the series progresses, Koenma seems to become more serious. In the Sensui saga, we learn about his feelings of guilt towards Sensui. After all, Koenma gave him the orders for the mission that changed Sensui's whole life.

Koenma decided to use the Evil Sealing Ring against Sensui, but it didn't quite work out. Sensui set things up so that Koenma would use some of the Ring's ki to save Tsukihito (the Gamemaster). Then, with Sensui's superior saint-like ki, there wasn't a chance that he'd be captured.

Also in the Sensui saga, he refused to obey his father's orders for the first time. He refused to return to Spirit World [Rei-kai], and followed Yusuke to the Demon World [Makai] to fight Sensui. In the last story about the Hell [Makai] rulers, Koenma secretly gave Kurama a location to train strong A-class Youkai, hoping that people from the Spirit World [Rei-kai] wouldn't find out.

Koenma is a character that develops and has grown during the series. He was a rather irritating little guy, but became an independent and rational man (although he still had the same looks).

The above description came from Anime Analyze, and was edited by yours truly (contact me). The image came from Gary's Anime Page.