Mumumu Mikaboshi is the form that Satan/Lucifer takes in Gensokyo and an original character from the Touhou Project fangame, The Last Comer. She was the one responsible of altering the morning star, which in turn had various negative effects in Gensokyo such as making Youkai stronger, but she still had no hand making the meteor fall. She explains the heroines that her power is even more intense in the outside world, going as far as corrupting anyone into doing her desires if their spirit is weak. Her archenemy is Iesua Nazarenus, the main antagonist of the game, and the form that Jesus Christ takes in Gensokyo.