Tokkou

Shindou Ranmaru, a young and ambitious detective, joins the Tokko: Special Mobile Investigation Force after graduating from police academy. He is driven by a personal vendetta to avenge the deaths of his parents, who were brutally murdered in his hometown of Machida. However, his investigation is complicated by the emergence of a mysterious girl, Rokujo Sakura, who is a member of a secret task force within Tokko. As Shindou delves deeper into the Machida Massacre, he discovers that the case is connected to a series of bizarre events unfolding across Japan, including the appearance of bottomless pits and the emergence of mysterious creatures.