Ayumi Mizuchi
The dark haired middle child of the Mizuchi family. She has four hulking bodyguards who follow her around for protection. Ayumi is a drug addict and dealer, and is extremely greedy. However, she is the least evil out of the Mizuchi sisters. Despite her cold demeanor, she is loyal to her father and sisters.
In the OVA she is betrayed and killed by Remi, who gives her a malfunctioning shotgun that backfires, and steals all her money.