00. Quick Thoughts
I realized early that I love Japanese comedy over other Asian comedies. Slapstick is my jam – though I have to admit that the Japanese do go overboard sometimes. Pick the right one and satisfaction’s guaranteed.
So I stumbled upon Bitter Blood while looking at Takeru Satoh’s filmography. I love this actor to bits and binging his earlier work was obligatory. You know deep inside this is also why you are here. Haha!
01. A Dive Into
Bitter Blood follows rookie detective Sahara Natsuki, unexpectedly paired with his estranged father, Detective Shimao Akimura (nicknamed “Gentle”), as partners at the same precinct. Their relationship is filled with tension and resentment due to Gentle’s absence in Natsuki’s life, but the forced partnership pushes them to confront their issues, building an awkward yet heartfelt connection.
The series is less about intense crime-solving and more about the duo’s evolving bond, with a light-hearted, comedic tone that sets it apart from typical detective shows. Rather than suspense, Bitter Blood leans into family-friendly comedy and touching moments, focusing on character growth and humor over complex plots.
02. Meet the Characters

Satoh Takeru – Sahara Natsuki
A rookie detective, Natsuki is sharp and determined but carries deep resentment toward his estranged father.

Watabe Atsuro – Shimao Akimura
Natsuki’s father and an experienced detective, Gentle is a bit of a maverick with a carefree attitude.
03. Plot Points & Popcorn Moments

Rookie detective Sahara and his estranged father, Detective Gentle, are assigned to the same precinct, finding themselves reluctantly paired as partners. Through shared cases and daily antics, they stumble their way into a father-son relationship, navigating the murky waters of their past while trying to work as a (semi) functional team.
While Sahara and Gentle’s dynamic steals the spotlight, this series isn’t aiming for groundbreaking. It’s a comfortable mix of predictability and comedy, focusing more on character quirks than intricate detective work. Think of it as a low-stakes cop story with moments of growth, forgiveness, and plenty of laughs along the way.
04. Setting the Mood

The series doesn’t take itself too seriously, and you shouldn’t either. It’s got a light-hearted tone, leaning heavily into comedy and family drama rather than intense crime-solving. The pacing moves at a decent clip—enough to keep the episodes engaging without overstaying their welcome. If you’re looking for a detective show that doesn’t dive too deep into heavy backstories or overly emotional angst, Bitter Blood fits the bill.
What truly sets the mood? The father-son banter and awkward bonding moments. It’s refreshingly low on brooding, unlike some dramas, so you won’t have to suffer through endless episodes of Sahara in a bitter funk.
05. Does This Drama Spark Dorama Delight?
What I loved ~
Could have been better~
06. Weekend Binge or Weeknight Dud?
So bottom line is that Bitter Blood is a great watch, just don’t expect a spectacular plot or a blockbuster. The quality might not be grand for a detective show but for a fun and comedic watch, it passes. Also, consider the fact that this is an older show. Give it a little leeway. Suggest lowering your standards, letting go of expectations and just go in for the ride.
What do you think about Bitter Blood? Share it in the comments, and let’s talk about what makes this show special. Lights out, drama lovers!
8.3/10
MDL RATING

SUMMARY
Rookie detective, Sahara Natsuki, is assigned to the Investigation Division of the Ginza police station. Here he has an unexpected reunion with his father and veteran detective, Akimura Shimao, from whom he has been estranged since his parents’ divorce. They find themselves unwilling partners, butting heads repeatedly. Over time, however, Natsuki learns more about how to be a good detective from his father, and possibly how to let go of their past.
Adapted from the manga “Bitter Blood” (ビター・ブラッド) by Shizukui Shusuke (雫井脩介)
COMEDY | ACTION
DIRECTOR
Kanai Ko, Tanimura Masaki, Nagase Kunihiro
CAST
Satoh Takeru, Watabe Atsuro, Kutsuna Shioli, Fukikoshi Mitsuru, Tanaka Tetsushi, etc…

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