The Decagon House Murders (manga) - Wikipedia

Disco Detective Wednesdayyy, Japanese Mystery Wiki

The Decagon House Murders, Japanese Mystery Wiki

The Decagon House Murders/Jukkakukan no Satsujin by Yukito Ayatsuji and Hiro Kiyohara : r/MangaFrames

Yukito Ayatsuji - Wikipedia

Yukito Ayatsuji Comics - Comic Vine

Jukkakukan no Satsujin (The Decagon House Murders)

Mystery Video Games – Solving the Mystery of Murder

Suspenseful mystery story that gives its readers chances to think along [The Decagon House Murders] : r/redikomi

Sakigake!! Otokojuku - Wikipedia

List of fictional detectives - Wikipedia

Jukkakukan no Satsujin (The Decagon House Murders)

Manga Like Red List: Keishichou Sotai Sanka PO

Suspenseful mystery story that gives its readers chances to think along [The Decagon House Murders] : r/redikomi

Ancient City Insurrection Chapter (II), Mahouka Koukou no Rettousei Wiki

The Place Promised In Our Early Days: Most Up-to-Date Encyclopedia, News & Reviews