Ron Kamonohashi's Forbidden Deductions

GREAT
100%
OF 3 SCOUTSRECOMMEND

A disgraced genius detective, now a recluse, teams up with a well-meaning but inexperienced police officer to solve a serial murder case.

📖 SYNOPSIS

No student ever showed more brilliance at an elite detective academy than Ron Kamonohashi — and then they expelled him and told him he could never work as a detective again. Now he's a recluse living in a messy apartment, wasting away with all that brilliance and nowhere to put it. Enter Totomaru Isshiki, a well-meaning but not exactly sharp police detective who shows up at Ron's door desperate for help on a case he can't crack. What follows is one of the more fun buddy dynamics in recent mystery anime. Ron handles the deductions, Totomaru handles the actual legwork, and together they start solving cases that neither could manage alone. The comedy here lands well — Ron is eccentric in ways that keep catching Totomaru off guard, and Totomaru's earnest sincerity plays off Ron's detached genius nicely. But underneath the laughs, there's a real thread about why Ron was expelled and what happened at BLUE that keeps pulling you forward. It's a 13-episode TV series from 2023 by Diomedéa, adapted from a shounen manga, and it moves at a solid pace without dragging. If you liked the case-of-the-week charm of Detective Conan but want something with a more modern setup, or if the mismatched partner energy of Bungou Stray Dogs appeals to you, this is worth your time. The mysteries aren't impossibly complex, but the character dynamic makes them feel fresh.

✨ MUST WATCH IF...

You love detective buddy duos — Ron's genius paired with Isshiki's earnest naivety really works
Episodic mysteries with a slow-burn overarching plot like the "House of M" intrigue you
You want a comedy-mystery that doesn't take itself too seriously — think lighthearted Conan vibes
Akira Amano's character designs from Hitman Reborn appeal to you — similar aesthetic here via Diomedéa

❌ SKIP IF...

You need deep character growth — Isshiki stays pretty passive and underdeveloped across 13 episodes
Repetitive case-of-the-week structures bore you — most arcs wrap in one or two episodes
You prefer serious, gritty detective stories — the constant comedy undercuts the darker themes here

🎬 EPISODE GUIDE

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MANGA BRIDGE

This season covers Chapters 1-25 of the manga. Continue reading from Chapter 22.

Manga cover

🎭 CHARACTERS

Ron Kamonohashi

A top detective with a revoked license, Ron partners with Totomaru to solve cases, despite his prestigious lineage.

Portrayed by Azakami Youhei

Totomaru Isshiki

Metropolitan Police detective Totomaru Isshiki assists Ron Kamonohashi, taking credit for case solutions.

Portrayed by Enoki Junya

Great
Great
100%(1 Review)
Ron Kamonohashi's Forbidden Deductions

Studio

Diomedéa

Season

Fall 2023

Start Date

2023-10-02

End Date

2023-12-25

Episodes

13

Type

TV

©天野明/集英社・鴨乃橋ロンの禁断推理製作委員会

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