Biography:Ai Iwamura, also known as Aiko Iwamura is a Japanese actress, born on March 4, 1984. Iwamura is best known for her role as Mai in Battle Royale. Iwamura also fulfills some "stand-in" roles as Izumi Kanai, Noriko Nakagawa, Hirono Shimizu, and Haruka Tanizawa. Iwamura also stars as Mai in Battle Royale II: Requiem.