A quirky detective-inventor tackles bizarre cases with a laid-back style, surrounded by his outrageous inventions.
Hey Detective, Your Backpack is Open! is a 2026 drama and comedy TV series from Japan starring Ryuhei Matsuda, Hikaru Takahashi and Koji Ohkura. It first aired on January 9, 2026. The series has 1 season and 8 episodes on tv asahi. Episodes run about 48 min, in Japanese.
Hey Detective, Your Backpack is Open! premiered on January 9, 2026.
The main cast includes Ryuhei Matsuda, Hikaru Takahashi, Koji Ohkura, Shingo Mizusawa and Yuki Katayama.
Hey Detective, Your Backpack is Open! has 1 season (8 episodes). Status: Ended.
No streaming service lists it for US yet. Add it to your watchlist and check back — availability updates regularly.
Every episode's audience rating at a glance — find the best (and worst) episodes before you binge.
| E1 | E2 | E3 | E4 | E5 | E6 | E7 | E8 | |
|---|---|---|---|---|---|---|---|---|
| S1 | 6.0 | 6.0 | 4.0 | – | – | – | – | – |
9+ Awesome8+ Great7+ Good6+ Regular<6 Bad
detective
Ryuhei Matsuda
Hikaru Takahashi
Koji Ohkura
Shingo Mizusawa
Yuki Katayama
Ken Mitsuishi
Kitaro
Mieko Harada