Ikebukuro West Gate Park (池袋ウエストゲートパーク), usually referred to by its initials IWGP, is a series of urban mystery novels by Ira Ishida. It was adapted into a drama television series directed by Yukihiko Tsutsumi. The television drama then got a manga adaptation. An anime television series adaptation of the original novel by Doga Kobo aired from October to December 2020. Source: Wikipedia (en)