Requiem from the Darkness

Yamaoka Momosuke, a writer, has grown disillusioned with creating children's riddles and decides to compile spooky and gruesome stories in an anthology called Hyakumonogatari. While researching these old myths and legends, he encounters a trio known as the Ongyou, who claim to be detectives seeking to uncover the truth behind the legends and bring perpetrators to justice. As Momosuke works with the Ongyou, he's confronted with disturbing revelations that challenge his moral compass.