Yoshiko, self-proclaimed "master player," goes to the park. She immediately starts playing with the kids, but the kids can't help but show surprise and confusion at the games her idiot whims bring her to play. Kurosaki, a delinquent, joins the mix, and the disciplinary committee president who can't keep her fantasies in check control appears. More idiots just keep coming!

Ten years ago, Yoshiko met Akuru. Childhood friends, the kid next door, the old cliché story, shattered into a million pieces with the tragedy which unfolds. Young Akuru seeks the power to defeat Yoshiko, surpassing his limits out of fear. What is born in the young Akuru's heart?