Yggdrasil

Yggdrasil (イグ＝ドラジール; Igu Drazil), is a supporting character in Maou ni Natta node... He is the spirit lord.

Appearance
Yggdrasil looks like a floting robe the size of a child with a floating staff. His head is a fist-sized orb of light.

History
Several years before Yuki reincarnated, Yggdrasil visited a small, beautiful village. Because the villagers didn't claim (terraform) the land, he appreciated the vampires' way of life. He found Illuna had affinity for spirits and taught her spirit magic.

Yggdrasil visited the ruins of the vampire village and came to Yuki's dungeon to verify her safety because the villagers treated him well.