My Grandfather, the Master Detective(2026)
My Grandfather, the Master Detective Synopsis
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.
My Grandfather, the Master Detective (2026) is a mystery series that premiered on July 17, 2026, spanning 1 season and 8 episodes. It stars Ai Yoshikawa, Keito Tsuna, Yuri Tsunematsu and Aloha Takamatsu. Viewers rate it 7.0 out of 10 across 3 ratings.
- First aired:
- 2026-07-17
- Last aired:
- 2026-09-04
My Grandfather, the Master Detective Cast & Crew
Main cast
Ai Yoshikawa
as Kaede
Keito Tsuna
as Shiki
Yuri Tsunematsu
as Misaki
Aloha Takamatsu
as Iwata
Eiji Okuda
as Kaede's Grandfather
Hisashi Yoshizawa
as Agatsuma
Takehiro Ohtsuki
Manato Sakamoto
Daichi Asai
Rie Minemura
Masanobu Katsumura
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My Grandfather, the Master Detective Reviews & Ratings
Average viewer score of 7.0/10 from 3 ratings.
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My Grandfather, the Master Detective – Frequently Asked Questions
Where can I stream My Grandfather, the Master Detective?
+
My Grandfather, the Master Detective (2026) is available to stream on TELESA Amazon Channel, with episodes also available to buy from Amazon Video. Availability comes from JustWatch data and varies by country.
How many seasons of My Grandfather, the Master Detective are there?
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My Grandfather, the Master Detective has 1 season and 8 episodes in total, starting from its premiere on July 17, 2026.
Is My Grandfather, the Master Detective still running?
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No. My Grandfather, the Master Detective is marked as ended, with the final episode airing on September 4, 2026.
Who is in the cast of My Grandfather, the Master Detective?
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My Grandfather, the Master Detective (2026) stars Ai Yoshikawa, Keito Tsuna, Yuri Tsunematsu, Aloha Takamatsu and Eiji Okuda. The full cast list with character names is available in the cast section of this page.
Is My Grandfather, the Master Detective any good?
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My Grandfather, the Master Detective (2026) is rated 7.0 out of 10 from 3 viewer votes, and suits viewers who like mystery series. Reviews from viewers are collected further down this page.