If you're looking for manga similar to Tantei no Tantei (Novel), you might like these titles.
A staircase rises into the sky; white feathered “birds” speak in women’s voices and offer to serve as vehicles; clusters of naked men and women romp on slopes carpeted with rainbow-colored flowers. His fantastical utopia is filled with entrancing music and strange sweet odors, and nothing is ordinary, predictable, or boring. The novella reflected the new culture of mechanically produced simulated realities (movies, photographs, advertisements, stereoscopic and panoramic images) and focused on themes of the doppelganger and appropriated identities: its main character steals the identity of an acquaintance...
Rising-star detective Yuri meets her match when a trusted police confidante, a brilliant psychoanalyst, slightly botches a murder and refuses to claim it for his serial-killer persona. The victim, an enigmatic young woman, turns out to have been no slouch, either.
Disco Wednesdayyy, an American detective specializing in missing children, lives with six-year old Kozue Yamagishi in Chofu City, Tokyo. One day, a seventeen-year-old girl “invades” Kozue’s body right before his eyes, and with it, the door to the biggest case in human history opens. A soul thief, a black bird man who embodies all evil, and a series of deaths of great detectives gathered in a strange cylindrical house “You are at the center of this disaster.” Just Facts! Chasing only the truth, run through three thousand worlds, Disco!
My little sister hanged herself, and my devastated mother called me. An amused trespasser showed me a video of my sister’s r*pe, and pointed me to the location of the rapists’ beloved daughters. I grab my stun gun and enact my kidnapping plan. But the city is also home to Jack the Stabber, whom 77 girls have fallen prey to.
Portraying himself as a failure, the protagonist of Osamu Dazai's No Longer Human narrates a seemingly normal life even while he feels himself incapable of understanding human beings. Oba Yozo's attempts to reconcile himself to the world around him begin in early childhood, continue through high school, where he becomes a "clown" to mask his alienation, and eventually lead to a failed suicide attempt as an adult. Without sentimentality, he records the casual cruelties of life and its fleeting moments of human connection and tenderness.
When Detective Kusanagi of the Tokyo Police tries to piece together the events of that day, he finds himself confronted by the most puzzling, mysterious circumstances he has ever investigated. Nothing quite makes sense, and it will take a genius to understand the genius behind this particular crime...
Yoshitaka, who was about to leave his marriage and his wife, is poisoned by arsenic-laced coffee and dies. His wife, Ayane, is the logical suspect—except that she was hundreds of miles away when he was murdered. The lead detective, Tokyo Police Detective Kusanagi, is immediately smitten with her and refuses to believe that she could have had anything to do with the crime. His assistant, Kaoru Utsumi, however, is convinced Ayane is guilty. While Utsumi's instincts tell her one thing, the facts of the case are another matter. So she does what her boss has done for years when stymied—she calls upon Professor Manabu Yukawa. But even the brilliant mind of Dr. Yukawa has trouble with this one, and he must somehow find a way to solve an impossible murder and capture a very real, very deadly murderer.