Sabato Mihashigo

Sabato is another angel sent from the future to assassinate Sakura before he can create his "Pedophile's World". Also with super-human strength, Sabato has ram horns on her head, and is unusually polite, even when threatening to kill Sakura, addressing people with the formal "-san" suffix after their names as opposed to the informal "-kun" or "-chan". After she was defeated, she began to live in a small cardboard box under a bridge; her living allowance is funded from an unknown source. Her weapon of choice is a deadly shock-baton called Durandal which according to Sabato can "char blue whales in the blink of an eye." "Durandal" is most likely a reference to Durendal, the sword of Charlemagne's paladin Roland. Source: wikipedia.org