In the future, the Japanese government captures a class of ninth-grade students and forces them to kill each other under the revolutionary "Battle Royale" act.

Father and son coroners receive a mysterious unidentified corpse with no apparent cause of death. As they attempt to examine the "Jane Doe," they discover increasingly bizarre clues that hold the key to her terrifying secrets.

The story of a super-secret spy organization that recruits an unrefined but promising street kid into the agency's ultra-competitive training program just as a global threat emerges from a twisted tech genius.