An anime adaptation of the manga of the same name by Kurosugi Shinsaku. Rina and Shiori are two women who are not to be messed with. One night, while out late at a karaoke bar, the staff attempts to take advantage of the two ladies. A dispute arises over the bill, but the two former gang members fight back. As revenge, they decide to rape the karaoke staff and force them to have sex with each other.