Yuki lives at home in peace until one day, a unit of assassins breaks in and kills her mother. To avenge the heinous crime, Yuki becomes a demon of vengeance, donning gothic lolita clothing and using a deadly parasol as a weapon. This film marks the first starring role for Akiyama, best known for her trademark butt pose in gravure magazines and photo books, which earned her the Best Buttocks Award in 2007 and the title Bishiri no Joo (Queen of the Beautiful Ass).