"Hotoke"... is a "once-human monster" that has emerged as a result of the spread of a new type of disease. The "Chokusoutai" is a national defense organization whose purpose is to exterminate the "Hotoke" that has repeatedly slaughtered people. A 14-year-old boy, who spends his days in a state of unfulfillment, is in love with a girl who hates the Chokusoutai. But the boy doesn't know. Little does he know that his small and faint love for her will eventually lead him to a world of monsters. Confront the fleeting and steep youth. Panic action for a new era begins!