Sailor Iron Mouse's real name was Nezu Chuuko. Nezu worked as the producer of Galaxy TV. Iron Mouse used a telephone booth to travel. She came very close to getting Seiyu's star seed but messed up. She was afraid to answer the phone after that. When she did, Galaxia came and took her bracelets, which were needed for keeping her alive. Mouse tried to bargain with a riddle but it didn't work out. Iron Mouse was the first to be killed.
