Kumojacky is a member of the Desert Apostles. Although being evil, Kumojacky believes in fair fights, and will never fight enemies that are too weak. As he mentions that the current Pretty Cure is the weakest in history, it is possible that he has met others than just them, Cure Moonlight and possibly Cure Flower.

Kumojacky has shown to have a constant calm personality wherever he goes. He likes to see other people's pain, and has no problem using this to his liking. Full of himself, he claims that not even one hundred Cures can defeat him. Despite this, he is mannered, and always introduces himself to someone he is going to use or fight with, and never fights unfair. However, he never hesitates to tell people their weaknesses, and even encourage them into becoming stronger.