"Protecting students is my duty."
When a training camp at a lakeside campground turns into a bloody massacre, the students of Mizunara Academy’s Outdoor Activities Club are taken hostage by the vicious criminal organization Crack, who are searching for six billion yen hidden somewhere on the grounds. As the students face certain death, their quiet assistant club advisor, Yura, reveals herself as an unexpected force capable of turning the tables on their captors.
