One of the most essential characters to the show, Koenma is one of the most interesting characters in anime.

While he looks like a toddler, he’s centuries old and the prince of the Spirit World. Yusuke still doesn’t take him seriously.

I always thought he was a terrible boss to Ogre.

His teenage form is actually pretty cool, hilarious that he came up with it to make people not believe he was a baby. Better ditch the pacifier, sir.

He really get serious when the threat of demon world entering the human world becomes apparent.

I did admire his attempt to stop Sensui. Too bad it didn’t work.

He spends the last saga hiding from his father, and even disguises himself to watch the demon world tournament. I know in the manga, his father is ousted from power and he has control of Spirit World.