Overview
Series synopsis
Hey Detective, Your Backpack is Open!, also known as 探偵さん、リュック開いてますよ is a Japanese drama comedy television series that premiered on tv asahi on January 9, 2026. It ended on February 27, 2026. It stars Ryuhei Matsuda, Hikaru Takahashi, Koji Ohkura and Shingo Mizusawa.
A quirky detective-inventor tackles bizarre cases with a laid-back style, surrounded by his outrageous inventions.
Premise
A quirky detective-inventor tackles bizarre cases with a laid-back style, surrounded by his outrageous inventions.
Cast and characters
Leading cast
- Ryuhei Matsuda as Ichinose Yosuke
- Hikaru Takahashi as Sakai Aoi
- Koji Ohkura as Shimizu Toshinori
- Shingo Mizusawa as Muromachi Kei
- Yuki Katayama as Minami Kasumi
- Ken Mitsuishi as Shundo Keitaro
- Kitaro as Tobizaru
- Mieko Harada as Ichinose Ema
Guest cast
- Tatsumasa Murasame as Michael McLachlan
- Ananda Dawn Jacobs as Linda
- Gaku Hamada as Yukimura Sanada
- Yugo Mikawa as Kosuke Anayama
- Kaho as Rika Kanbayashi
- Joe Odagiri as Master
- Ayumu Nakajima as Takashi
- Shoichiro Akaboshi as Animaru
Episodes
This series spans 1 season with 8 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 8 | January 9, 2026 | February 27, 2026 |
Season 1 preview
8 episodes total
| Episode | Title | Air date |
|---|---|---|
| 1 | Episode 1 | January 9, 2026 |
| 2 | Episode 2 | January 16, 2026 |
| 3 | Episode 3 | January 23, 2026 |
Production
Genres
Drama, Comedy
Country
JP
Original language
ja
Release
| Original network/platform | tv asahi |
|---|---|
| First aired | January 9, 2026 |
| Last aired | February 27, 2026 |
| Runtime | 48 minutes |
| Status | ended |