Akira Amano’s Ron Kamonohashi: Deranged Detective is coming to an end. The manga series, which has been serialized in Shueisha’s Shōnen Jump+ since October 2020, will conclude on July 6th with Chapter 170. This announcement marks the end of a thrilling mystery series.
A Detective Duo’s Journey
Ron Kamonohashi: Deranged Detective follows the unusual partnership of Ron Kamonohashi, a brilliant but eccentric private investigator, and Totomaru Isshiki, a pure-hearted but somewhat clueless police detective. Together, they solve a series of baffling mysteries, with Ron’s unique abilities and Totomaru’s unwavering dedication creating a compelling dynamic.
The Premise
The manga presents Ron Kamonohashi, a former top student at an elite detective training academy. However, his detective license was revoked five years prior to the start of the series after he was framed for a murder spree. Due to a strange condition, Ron compulsively drives criminals to commit suicide after exposing them, preventing him from working as a detective.
Totomaru Isshiki, a young police officer, seeks Ron’s help with a difficult case, leading to the formation of their partnership. As they solve mysteries together, Totomaru learns about Ron’s past and the circumstances surrounding his revoked license. The duo faces challenges from those who framed Ron.
Characters
- Ron Kamonohashi: A brilliant detective. Once the top student, now burdened by a mysterious condition that leads criminals to their demise.
- Totomaru Isshiki: A dedicated but unskilled police officer. He brings a sense of justice and earnestness to the duo’s investigations.
Manga Details
Ron Kamonohashi: Deranged Detective has been serialized in Shueisha’s Shōnen Jump+ since October 11, 2020. As of June 2025, seventeen tankōbon volumes have been released. Shueisha publishes the series in English on the Manga Plus online platform.
Volumes
As of June 2025, seventeen volumes of the manga have been released. The series has been simultaneously published in English and Spanish on Shueisha’s Manga Plus service.
Ending
Chapter 170 will be released on July 6th, 2025, marking the series finale.
Anime Adaptation
An anime television series adaptation, produced by Diomedéa, aired from October to December 2023, with a second season premiering in October 2024.
Production
- Director: Shōta Ihata
- Scriptwriter: Wataru Watari
- Character Designer: Masakazu Ishikawa
- Music Composer: Yo Tsuji
- Studio: Diomedéa
Theme Songs
- Season 1 Opening: “Ikenai Fool Logic” by Unison Square Garden
- Season 1 Ending: “Lipsync” by Hockrockb
- Season 2 Opening: “Feedback o Narashite” by Humbreaders
- Season 2 Ending: “Labyrinth” by Hockrockb
Streaming
Crunchyroll streamed the series outside of Asia under the title Ron Kamonohashi’s Forbidden Deductions. Medialink licensed the series in South, Southeast Asia, and Oceania (excluding Australia and New Zealand), streaming it on their Ani-One Asia YouTube channel.
Reception
The manga was nominated for the seventh Next Manga Awards in the Best Web Manga category in June 2021, placing 14th out of 50 nominees. Mystery writers Rintaro Norizuki, Masaki Tsuji, and Sako Aizawa have recommended the series. Aizawa praised it as an “authentic mystery manga for the new era,” highlighting its fast pace, tricks, and logic in identifying culprits.
Akira Amano: The Author
Akira Amano, born in 1973, is a Japanese manga artist known for the shōnen series Reborn!. Amano’s career began with various one-shot stories before achieving success with Reborn!, which was serialized in Weekly Shōnen Jump from 2004 to 2012.
Other Works
Amano’s notable works include:
- Reborn!
- ēlDLIVE
- Original character designs for Psycho-Pass and Suicide Squad Isekai
Style and Themes
Amano’s works often feature action, comedy, and charismatic characters. Ron Kamonohashi: Deranged Detective showcases Amano’s ability to blend mystery with unique character dynamics.
The Final Arc
The final arc of Ron Kamonohashi: Deranged Detective, titled “The Case of the Time Island Serial Murders,” began in December 2024 with Chapter 152. In this arc, Alice orchestrates a series of murders on Time Island to challenge Ron, trapping him, Totomaru, and others.
Cliffhanger
Chapter 169 ends with a cliffhanger. Alice declares Ron the victor but states she will die soon, leading Ron to chase after her. An airstrike hits near the island, leaving the fate of the characters unknown.
What’s Next
With Ron Kamonohashi: Deranged Detective concluding, fans are curious about Akira Amano’s future projects. Amano’s versatility and creativity.
Legacy
Ron Kamonohashi: Deranged Detective has left its mark on the mystery manga landscape, and fans eagerly await the series’ conclusion.
A Blend of Mystery and Comedy
The series has been praised for its unique blend of mystery and comedy, with the dynamic between Ron and Totomaru providing both humorous and heartfelt moments.
Impact on Readers
Many readers have enjoyed the series for its engaging mysteries, well-developed characters, and Amano’s distinctive art style. The series has garnered a dedicated following.
Final Thoughts
Ron Kamonohashi: Deranged Detective will conclude on July 6th, 2025. The series has been a notable addition to the mystery manga genre.
