The Magic Kaijin looks like a regular Minion of Maoh, but wears a blue cap atop its head and a red and black cape around its neck. He also wears a black suit.
The Magic Kaijin was the fiftieth opponent to fight Greenman in the series. Like all the other monsters and Kaijin who had come before him, he was sent by Maoh with Tonchiki to try and retrieve the blood of human children to free Maoh from the Underworld. Once on the surface, Tonchiki and the Magic Kaijin chased the group of kids around, until the kids used their Green Calls to summon Greenman to the fray. Greenman and the Magic Kaijin fought while Tonchiki ran away, and Greenman at first had trouble coping with the Magic Kaijin's various spells, until the battle turned in his favor, and he eventually defeated the Magic Kaijin.
- The Magic Kaijin can cast a variety of spells by throwing his cape over himself.