Ron Kamonohashi is a brilliant former prodigy of the elite BLUE Detective Training School, cursed with a debilitating condition: whenever he solves a mystery, his hypnotic suggestion forces the culprit to commit suicide. Shunned by BLUE and stripped of his license, Ron spends years living in miserable isolation, his intellect wasting away. His stagnant existence shatters when Totomaru "Toto" Ishiki, a well-meaning but hopelessly bumbling
homicide detective from the Metropolitan
Police Department, seeks his help with a string of bizarre serial murders. Recognizing that Toto is entirely immune to his fatal compulsion, Ron agrees to solve the cases on one condition: Toto must take all the credit. This sets up a symbiotic partnership where Toto acts as the brawn and public face, while Ron operates as the brilliant, eccentric brain from the shadows.As the unlikely duo tackles increasingly grotesque and complex crimes, a shadowy pattern emerges. They realize these interconnected murders are not random acts of violence, but a calculated campaign orchestrated by the Mischievous Family, a sinister, high-level criminal syndicate deeply embedded within the upper echelons of society. This sinister organization specifically targets Ron, aiming to either break his psyche completely or exploit his terrifying deductive genius for their own nefarious global objectives.Throughout their harrowing investigations, Ron and Toto confront psychological torment, death-defying traps, and formidable assassins sent by the syndicate. Ron is forced to constantly navigate the razor-thin margin between satisfying his insatiable urge to solve mysteries and inadvertently causing the deaths of the very criminals he tracks. Meanwhile, Toto evolves from a timid follower into a fiercely loyal protector, grounding Ron’s deeply unstable and traumatized psyche.The narrative intensifies as the duo inches closer to the apex of the Mischievous Family. They must decode cryptic messages left by Ron’s own family lineage, which holds dark secrets regarding his peculiar upbringing and the true nature of his deductive curse. As the net tightens, Ron uncovers startling truths about his past, realizing that his expulsion from BLUE was meticulously engineered. With Toto standing bravely by his side, Ron embraces his identity not as a cursed pariah, but as a relentless seeker of truth. Together, they prepare for a high-stakes, psychological chess match against the syndicate's masterminds. They aim to dismantle the criminal empire once and for all, clear Ron’s tarnished name, and conquer the fatal flaw that has haunted his genius, ultimately proving that true justice requires both a sharp mind and an unwavering heart.