Nomura Suzume; Angel of Tokyo

[hammerspacey]

Power: Extradimensional storage capability, "hammerspace"
In Summary: The daughter of a prosperous family, Suzume has been raised to be diligent, polite, and efficient. She gets excellent grades, is well-spoken, and does things elegantly. She plays classical piano, paints, reads Important Fiction, and is all set to inherit the family business someday.

Except she knows she's not going to because she's going to have to end the world. Which is kind of okay, because she's not super-sold on the future that's been planned out for her and pitched to her since birth. That, and, well, as it turns out, her parents aren't very good people, and she's probably gotten to where she is via blood money. The world, as far as she can tell, is composed of those who suffer, and those who make the rest suffer. The former will be put out of their misery; the latter will get their just desserts.

She is also very sweet, polite and kind. Really, it's not that she wants everyone to die. It's just making a clean slate.