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The "Iron Maiden" is an instrument of torture modelled after St. Mary's form. The interior is filled with long nails, and people who are enclosed in it are pierced to death. But the "Iron Maiden" that exists nowadays is simply a counterfeit based off of old tales. The "maiden" with a gentle, loving face that hides a violent "body"... Did the "Iron Maiden" really exist in the past?
In 1950s Tokyo, only the Rose Cross Detective Agency can tackle the cases that the police won't touch. Enokizu is an eccentric private eye with psychic abilities, and Chuuzenji is a surly used book store owner with an encylopaedic knowledge of obscure trivia. Together with their associates, they seek justice for the victims.
We've all heard urban legends--stories that we tell one another late at night, just to make us cringe and freak ourselves out. We dismiss these stories as just plain old creepy. But what happens when they become real...? Enter Detective Aso Daisuke. When he isn't dealing with cheating spouses, con artists, or his ero-manga collection, he dives deep into the intense fear of these horrors. With his first case--the man under the bed--can he stop a disturbed killer with a bloody axe?
Asato Minami has a "unique constitution." He senses the lingering thoughts of murder victims, and experiences the circumstances under which they died with his own body in a reaction similar to stigmata. This proves useful in solving difficult cases with the Metropolitan Police Department's Special Investigations Unit Six. Asato's partner is the reserved Superintendent Kuroiwa Hiroto, rising through the MPD ranks despite doubting his own abilities.
Fifteen years ago, Garai was part of a group of delinquents who kidnapped Yuki, the young brother of a famous kabuki actor, on a remote island which housed a secret military base. Garai couldn't control his lust for the young boy's girlish looks and took advantage of him in a cave, followed by a grim discovery: everyone on the base was dead from an apparent leak of MW, a powerful neurotoxin. In the present, Yuki is alive, but exposure to the MW destroyed his conscience; he now lives a double life as both an attractive bank employee and a sadistic, brutal killer who kidnaps, rapes and destroys others for his own whims. Garai, plagued with guilt, has become a priest and tries desperately to save Yuki's soul, though often ending up in bed with him instead. Yuki's ultimate goal is to find MW once more to destroy the world; can Garai stop him in time?