Akira Amano’s popular detective manga series, Ron Kamonohashi: Deranged Detective, officially concluded its serialization on July 6, 2025, with the release of its 170th chapter. The finale marks the end of a five-year run for the mystery series, which has captivated readers with its unique blend of eccentric characters and intricate cases.
The Final Chapter Arrives on July 6
The conclusion of Ron Kamonohashi: Deranged Detective was officially announced by Shueisha on their Shonen Jump+ website, where the manga has been digitally distributed since its debut. The final installment, Chapter 170, titled “A New Forbidden Deduction,” brought the narrative of the unconventional detective duo to a close. The manga, also available in English on the MANGA Plus app by Shueisha, released its latest 17th tankōbon volume on June 4, 2025.
Five Years of Mystery and Mayhem
Launched in October 2020, Ron Kamonohashi: Deranged Detective has enjoyed a successful serialization, captivating a dedicated fanbase over its nearly five-year span. The series quickly established itself within the mystery genre, lauded for its complex puzzles and engaging character dynamics. Its ending has been met with a mix of disheartened sentiment and a sense of satisfying closure among its readers.
A Unique Detective Duo’s Journey
The manga centers on the adventures of Ron Kamonohashi, a brilliant yet deeply flawed private investigator, and Totomaru Ishiki, a pure-hearted but somewhat naive police detective. Ron, once considered the top student at a prestigious detective training academy, was expelled and forbidden from practicing his profession due to a severe past incident, often referred to as the “Bloody Field Trip.” Despite his forced isolation, Ron’s insatiable drive to solve mysteries leads him to form an unlikely partnership with Totomaru, as they together unravel the most perplexing crimes. This compelling premise, highlighting a genius detective burdened by a mysterious past and his earnest, albeit less skilled, partner, has been a core appeal of the series.
Akira Amano’s Legacy Continues
The conclusion of Ron Kamonohashi: Deranged Detective adds another significant work to the esteemed bibliography of mangaka Akira Amano. Amano is widely recognized for her previous highly successful series, most notably Reborn! and ēlDLIVE, both of which garnered considerable attention and critical acclaim.
From “Reborn!” to “Ron Kamonohashi”
Akira Amano’s distinctive art style and her ability to craft compelling narratives have been hallmarks of her career. Before embarking on Ron Kamonohashi, Amano gained widespread fame for Reborn! (Katekyō Hitman Reborn!), a series known for its unique blend of action, comedy, and supernatural elements, which ran from 2004 to 2012. Following this, ēlDLIVE (2013-2018) further showcased her versatility. Ron Kamonohashi: Deranged Detective allowed Amano to delve deeply into the mystery genre, demonstrating her prowess in developing intricate plots and compelling character motivations.
Expanding Beyond the Page: Anime and Stage Adaptations
The popularity of Ron Kamonohashi: Deranged Detective extended beyond its manga format, leading to successful adaptations in other media. An anime television series titled Ron Kamonohashi’s Forbidden Deductions, produced by studio Diomedéa, premiered its first season in October 2023. A second season followed, airing in October 2024, with both seasons streamed globally by Crunchyroll. Furthermore, the series also inspired a stage play that was performed in Tokyo and Osaka in November. These adaptations further cemented the series’ place in contemporary pop culture, expanding its reach and deepening its engagement with a broader audience.
Looking Back and Forward
The ending of Ron Kamonohashi: Deranged Detective marks a significant moment for its fans and for Akira Amano’s ongoing career. While the immediate future of Amano’s next projects remains to be seen, her consistent output of engaging and well-received works suggests that her next creation will be eagerly anticipated by her global readership. The series leaves behind a legacy of intricate mysteries, memorable characters, and a testament to the enduring appeal of the detective genre in manga.
