- Series: Akuma no Riddle: Riddle Story of Devil (Book 5)
- Paperback: 180 pages
- Publisher: Seven Seas (August 15, 2017)
- Language: English
- ISBN-10: 1626923388
- ISBN-13: 978-1626923386
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Haru and Toukaku may survive class Black, but when they learn the truth about the class and it’s function, it threatens to tear them apart. Will Toukaku be the one to kill Haru after all?