A pair of star-crossed dancers in New York find themselves at the center of a bitter rivalry between their brothers' underground dance clubs.

Yuki lives at home in peace until one day a unit of assassins breaks in and kill her mother. In order to revenge herself Yuki becomes a demon of vengeance by donning gothic lolita clothing, using a parasol as a deadly weapon, and executing the guilty in God's name.

A troubled high school student discovers the truth behind his hidden abilities.