Melchior (メルヒオール) is the strongest member of Grimalkin.
Orga Lux: Melchior wields a total of seven Orga Lux that he uses freely. Because of his experience with multiple Orga Lux, he states that some try to force the user to give in, some are practically indifferent, and some try to be friendly in their own way.
- Typhon Ankh (砂嵐の戦鎚): Typhon Ankh enables Melchior to control sand, and the cost toward him is pretty light. This Orga Lux is later shown to be used by Roswitha Dietze, suggesting that Melchior stopped using it.
- Palladium (守護女神の宝剣): Palladium enables Melchior to reverse the course of power.
- Gremlin Bullet (小鬼猟銃): Gremlin Bullet enables Melchior to temporarily paralyze his target's sense of balance.
- Scepter of Sisyphus (シジフォスの苛笏): The Scepter of Sisyphus enables Melchior to cause pain to others by touching them with it, making it useful for torturing people rather than actual combat.
Genestellar (星脈世代): As a Genestellar, Wernher has enhanced physical ability and an aura known as prana.