The "Worm Toxin" is a spine-tingling experiment that delves into the occult, utilizing hundreds of insects. These bugs are put within a confined space and made to battle to the death until only one remains. Witnessing this ritual can be unnerving. Inspired by this, a demon tries to replicate the experiment by enclosing a hundred sorcerers within a "Box from Hell." To the demon's dismay, the final two sorcerers left standing are hopelessly in love and refuse to continue the game. The demon is determined to force them to reveal their true feelings, resorting to any means necessary to achieve its goal.