Chika, Michiru, and new member Sotetsu engage in battle to rescue their friend Shito from a mad scientist, then reinvigorate themselves with some all-night karaoke, where they may run up against the very people behind the illegal zombie activity.
Chika, Shito, and Michiru set out to stop a psychopath known as "The Butterfly" but their efforts are soon jeopardized by the arrival of a new team member who throws their balance off and struggles to fit in.
