Ability: Time Stop, Time Travel Wish: Change the weekend to 4 days! Soul Gem Location: Collarbone

Wish: "A wish? Ha. How childish. Let me surpass the Red Weekend." Ability: Sword, Gun, Healing Soul Gem Location: Shoulder

Wish: "Let me throw away classical music for good." Ability: Compressing or luring Witches with a piano. Soul Gem Location: Arm

True Name: Incubator "I will grant you any one wish. In exchange for that wish, a Soul Gem is created. Those who possess this gem take on the mission of fighting Witches." Kyubey is not a single individual, but a collective of alien entities that have been with humanity since its beginning. Initially appearing as a common magical girl mascot, its later actions—which can be interpreted as a metaphor for a demon—mark it as a legendary swindler and villain. It is the root cause of the tragic events in this story. It possesses a psychopathic nature devoid of emotion, showing no hesitation to kill when necessary and even intentionally inducing deaths. Its goal is to harvest the energy created by human emotions to reduce the total entropy of the universe. As time passes, the universe loses usable energy and is destined to eventually freeze; Kyubey's stance is to prevent the destruction of the universe by extracting the emotions felt by humans—especially adolescent girls—when they experience hope and despair. Kyubey's planet developed technology to convert emotion into energy long ago, but since they themselves lack emotions, they utilize humans. In short, the ultimate goal is to prevent the end of the universe, and it views human passion as a resource to be farmed like livestock. Kyubey actually compares its relationship with humans to that of humans and livestock, arguing a logic of symbiosis where some individuals are sacrificed so that the species as a whole can be preserved, which leaves the protagonists speechless. +Even if one dies, another Kyubey appears and devours the corpse of the dead one.