Yuukoku no Moriarty: “Hiiro” no Kenkyuu Anime Details and Episodes William is intrigued when a man in a tavern sees through Moran's cheating and challenges him to a game of poker for a large sum of money. There's also an… Series info · Watch free · Trending anime · Airing schedule FormatNovelStatusFinishedSourceMangaCountryJapan Mystery · Psychological Male Protagonist · Crime · Episodic Yuukoku no Moriarty (Parent Story) · Yuukoku no Moriarty: The Remains (Adaptation) William Moriarty · Louis Moriarty · Albert Moriarty · Sebastian Moran (Supporting) · John Watson