After the noble kappa nation falls to the otter empire, the kappa prince keppi loses plenty of his electricity and will become helpless towards the unseen kapa-zombies. These zombies plague the arena, and are the creations of the otters and manifestations of human beings’s private dreams. Without a other preference, keppi ought to depend on three younger boys: kazuki yasaka, who should bring a field with him anyplace he is going; enta jinnai, kazuki’s adolescence pal; and tooi kuji, a antisocial and a faculty truant.
Via having the legendary organ referred to as a shirikodama eliminated from them, the men are capable of come to be kappa themselves and combat the kapa-zombies. However, to defeat them, the boys should connect with every other through their minds, bodies, and most importantly secrets. Because the kappa state relies on those boys, they should monitor themselves as they have by no means completed earlier than, all of the while learning that connections are fragile and actually treasured things.