The Blade Children are on the alert as the first "hunter"-Kanon Hilbert, a fellow Blade Child and Eyes Rutherford's childhood friend-is sent to eradicate them. To shore up their defenses, Eyes seeks the cooperation of track star Ryouko Takamachi, a Blade Child who despises both him and Kiyotaka Narumi. Well aware that Eyes won't take "no" for an answer, Ryouko decides to let her physical prowess speak for her and challenges him to a simple game of dodgeball... or is it?