Mukuro Hoshimiya

Mukuro Hoshimiya is a fictional character from the anime series Date A Live. She is a Spirit, a supernatural entities that can use magical powers thanks to a special artifact called an Angel. Mukuro's Angel, Michael, can seal and unlock memories, emotions and even abstract concepts. It is also capable of planetary levels of destruction, to the point it can even stop the Earth's rotation.

After enduring a terrible childhood at the hands of scared adoptive parents, Mukuro used Michael to seal away her own memories, becoming a person of cold, dispassionate logic and desiring loneliness above all else. Once Shido uses Michael on her, however, Mukuro reveals that she actually wants love and companionship and emotion, leading her to attempt to kidnap Shido and keep him away from the other Spirits. Fortunately, cooler heads prevail and Mukuro becomes a part of the Spirit family.