Pretty Boy Detective Club 3 (light novel): The Pretty Boy in the Attic

From the renowed author NISIOISIN, the creator of BAKEMONOGATARI, Zaregoto Series and KATANAGATARI. Comes a new, innovative mystery series, Pretty Boy Detective Club! Mayumi Doujima, a second-year student at Yubiwa Private Academy, is a girl on the hunt for a star that can only be seen once in every ten years. But it turns out that the 'Pretty Boy Detective Club' - a mysterious, non-profit organisation that is rumoured to secretly solve trouble on campus - has decided to help Mayumi search for the star. These five vivacious pretty boys send her reeling, and set the stage for days of risky adventure!