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My Grandfather, the Master Detective

2026Show1 season8 episodes

Mystery
63
DecentGoodWatch score
IMDb5.6
63
DecentGoodWatch score
IMDb5.6

Summary

Elementary school teacher Kaede reunites with the grandfather who raised her as he begins living with Lewy body dementia, confronting the challenges the illness brings to their lives and relationship.

Good for

  • Date night
  • Family movie night
  • Friends night

Skip it if

  • You want fast pacing

Where to watch

Set your services

Not streaming in United States. Where it is:

Fingerprint

Not for scares, adrenaline or brutality.

Shows with

Cast

12 of 12 · most episodes first

Crew

Directors
Yoshiaki Murao, Osamu Katayama, Hayato Tajimi
Written by
Kanna Wakasugi
Produced by
Hitoshi Fuse, Hayato Tajimi, Ayumi Tsuzuki
Music by
Sayaka Aoki

Everyone

Pick a department, or search for a name or a job (“editor”, “stunt”).

Facts

July 17, 2026 · September 4, 2026 · Ended

First aired
July 17, 2026
Last aired
September 4, 2026
Status
Ended
Length
1 season · 8 episodes
Genres
Mystery
Original language
Japanese
Made in
Japan
Available in
1 country
Keywords
based on novel or book

Q&A

5 questions, like "Where can I stream My Grandfather, the Master Detective?"

Questions about My Grandfather, the Master Detective

Quick answers from GoodWatch data.

Where can I stream My Grandfather, the Master Detective?

It streams in 1 other country, but not in the United States.

Is My Grandfather, the Master Detective worth watching?

63
DecentGoodWatch score

Opinions are mixed, with a GoodWatch score of 63 (IMDb 5.6).

Is My Grandfather, the Master Detective okay for kids?

Yes: the viewing guide lists it for kids.

Is My Grandfather, the Master Detective plot-driven or character-driven?

CharactersPlot

Mostly character-driven: it leans on character depth (9 of 10) and pathos (8 of 10) more than on its plot.

Is My Grandfather, the Master Detective in English?

Japanese

No, it was made in Japanese.