The primary adversary in the series is a person who aims to become God at any cost, including taking lives. This individual is the grandson of the headmaster of a renowned school and seeks to bring back their deceased sister through this quest for divinity. So far, they have killed four other candidates under the alias "Metropoliman," claiming their wings and arrows as weapons. As they gain more power, they realize that multiple arrows can be combined to increase range, making them even more dangerous. They also possess the ability to bestow these weapons on others to carry out their orders.