The Decagon House Murders - Recommendations

• Vol: 1; Ch: 8
• 2001 - 2002

Professor Saikawa and Nishinosono Moe go to camp on an island where the mysterious Professor Magata Shiki has a closed laboratory. They're curious about the murder of Magata's parents, and they manage to talk their way into the lab itself. While they are inside, a dressed-up corpse is shockingly propelled out of the door of Magata's quarters! It appears she was murdered, and she won't be the last.

• Vol: 3
• 2005 - 2006

Katsuragi Shiho casually handed her house key to Shikibu before leaving her hometown. After not returning on the third day as she had promised, Shikibu probes around and finds a lead that brings him to "Yasha Island". However, the strange rituals being held on the island, Shikibu's investigation records getting stolen, and finding Katsuragi's name in the house of blood among other mysterious occurences all point to Katsuragi having vanished into thin air! Shikibu is bent on finding out the truth, but the islanders all seem to have been silenced by somebody...?!

• Vol: 2; Ch: 12
• 2018 - 2019

The Shadow Out of Time indirectly tells of the Great Race of Yith, an extraterrestrial species with the ability to travel through space and time. The Yithians accomplish this by switching bodies with hosts from the intended spatial or temporal destination. The story is told through the eyes of Nathaniel Wingate Peaslee, an American living in the first decade of the 20th century, who is "possessed" by a Yithian. He fears he is losing his mind when he unaccountably sees strange vistas of other worlds and of the Yithian library city. He also feels himself being led about by these creatures and experiences how they live. When he is returned to his own body, he finds that those around him have judged him insane due to the actions of the Yithian that possessed his body.

• Vol: 3; Ch: 25
• 2014 - 2016

Miro Takizawa was born and raised on the peaceful island of Sasaraijima, an island surrounded by mountains and ocean. This introverted girl has lived her first year in high school peacefully, falling in love and trying to make friends. Her peaceful life takes a sharp turn for the worse as she discovers the secrets of the "Tetsumin." Dark secrets await her as these horrific entities endanger the inhabitants of this once peaceful island.

• Vol: 4; Ch: 24
• 2008 - 2010

Seven girls who have no memory of their past or even their name lives on this island. Both the town and island are deserted but water and food are supplied to them each month. The girls call each other by numbers and names associated with the number. Number 6, Mutsuka is a girl desperately trying to get back to her beloved sempai. She has tried 16 times but she won't give up until she succeed. In her attempts she'll learn about the other inhabitants and about the island and not all of it are pleasant.

• Vol: 1; Ch: 6
• 2019

16-year-old Nanakusa is spending his mundane life on "Stairway Island" where he found himself "discarded" along with 2000 other people, all missing the memories of the time just before they arrived there. The name of the island originates from the long stairway running through the island and extending up to the summit of the mountain where the witch who rules the island is said to live. The only way to leave the island is by finding what was lost. Yet Nanakusa doesn't wish to leave this stagnant island. He enjoys his life there. That is until Manabe Yuu, his childhood friend appears in front of him, and turns his new life upside-down. Why did Manabe Yuu, the world's most optimistic person, get discarded, and who is the witch behind all these mysterious occurrences? Follow Nanakusa and Manabe as they uncover the true nature of Stairway Island.

• Vol: 1; Ch: 6
• 2002 - 2003

On a colleague, Professor Kita's, suggestion, Associate Professor Saikawa Souhei and his student Nishinosono Moe head to Kita's research institute, where various experiments are being conducted in a low-temperature research lab. During the night a murder takes place: two graduate students are found dead in the lab. How did the killer enter the locked room? How did they leave?

• Vol: 4
• 2016 - 2021

The "dramatic bio horror" manga is set in a world where a new disease is spreading through humanity, one which turns humans into amoebas and slime molds when they are too stressed. Whether someone lives or dies during the process is a roll of the dice.

• Vol: 4; Ch: 16
• 2015 - 2017

The students of Kamishiro High-School Class 2-A swore revenge on their homeroom teacher, Takao Nanami. Against her, a fake suicide had been concerted, meant to be played out by one of her students, whose actual death would later sink the class into confusion. Who soiled the water with blood? Skinned of its trust, their friendship became an urge to sate each other’s hunger.

• Vol: 7
• 2013 - 2018

The story centers around a first-year university student Uni who is from the countryside. At a circle in university, he meets a 25-year-old senior student called "Shishou" (Master), who is a deep occult fanatic. Guided by Shishou and his circle friends, Uni investigate various urban legends and paranormal phenomena.