Kaoru Fujiwara

A psychological thriller of a grieving mother turned cold-blooded avenger with a twisty master plan to pay back those who were responsible for her daughter's death. (imdb)

Airi Nishina is a high school student. On the way home from school, Airi is kidnapped by someone. Then, nine more high school students are all kidnapped like Airi. Those kidnapped students are forced to participate in Jinroh Game, with their lives at stake.