井口昇
is a 2008 Japanese action shock/gore film written and directed by Noboru Iguchi with special effects by Yoshihiro Nishimura (who went on to direct "Tokyo Gore Police"). The film stars Minase Yashiro as Ami, Asami as Miki, Kentarō Shimazu as Ryūgi Kimura and Honoka as his wife. It is about an orphaned Japanese schoolgirl whose life is destroyed when her brother is killed by a son of a Ninja-Yakuza clan. When her hand is cut off, she replaces it with a makeshift machine gun and seeks revenge.