Deep in a closed forest, there's a boarding school that trained talented boys to learn singing, dancing, etiquette, and entertain people. Lux, who dreams of graduating from a life bound by strict rules, is the youngest boy in the school, but he has never been called into a "night class" that only special students can take. One night, witnessing a student being taken away in a forbidden forest changed his life!? A dark suspense that approaches the mystery hidden in a glamorous school!