Hey Detective, Your Backpack is Open! poster
Where to stream

Hey Detective, Your Backpack is Open!

6.720261 seasonTV SeriesDramaComedy

A quirky detective-inventor tackles bizarre cases with a laid-back style, surrounded by his outrageous inventions.

ProducersKazuki Mori·Yoshihiko Yamamoto

Where to watch

Not available in United States
Streaming in 1 other country

Hey Detective, Your Backpack is Open! isn't on any streaming service in United States right now, but it's available in Japan. Streaming rights are licensed per country.

Seasons & Episodes

E1
Episode 1
Jan 9, 2026 6.0
E2
Episode 2
Jan 16, 2026 6.0
E3
Episode 3
Jan 23, 2026 4.0
E4
Episode 4
Jan 30, 2026
E5
Episode 5
Feb 6, 2026
E6
Episode 6
Feb 13, 2026
E7
Episode 7
Feb 20, 2026
E8
Episode 8
Feb 27, 2026

Cast

RMRyuhei Matsuda
Ryuhei Matsuda
Ichinose Yosuke
HTHikaru Takahashi
Hikaru Takahashi
Sakai Aoi
KOKoji Ohkura
Koji Ohkura
Shimizu Toshinori
SMShingo Mizusawa
Shingo Mizusawa
Muromachi Kei
YKYuki Katayama
Yuki Katayama
Minami Kasumi
KMKen Mitsuishi
Ken Mitsuishi
Shundo Keitaro
KKitaro
Kitaro
Tobizaru
MHMieko Harada
Mieko Harada
Ichinose Ema

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2021 · 8.0
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See all fromRyuhei Matsuda

More from Hikaru Takahashi · Co-star actress

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1971 · 6.4
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2021
MORE THAN LIKES
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2019
See all fromHikaru Takahashi

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Hey Detective, Your Backpack is Open! — streaming FAQ

Which OTT platform streams Hey Detective, Your Backpack is Open!?

Hey Detective, Your Backpack is Open! isn't on any streaming service in United States yet, but it's available in Japan. Streaming rights differ by country — switch your country in the header to see where.

Is Hey Detective, Your Backpack is Open! on Netflix?

No, Hey Detective, Your Backpack is Open! is not on Netflix in United States as of October 2026.

Is Hey Detective, Your Backpack is Open! on Amazon Prime Video?

No, Hey Detective, Your Backpack is Open! isn't on Amazon Prime Video in United States right now.

Where can I watch Hey Detective, Your Backpack is Open! for free?

Hey Detective, Your Backpack is Open! isn't streaming in United States yet, so there's no way to watch it free at the moment.

How many seasons are in Hey Detective, Your Backpack is Open!?

Hey Detective, Your Backpack is Open! has 1 season in total (8 episodes). The series concluded in 2026.

Are all episodes of Hey Detective, Your Backpack is Open! out yet?

Yes — all 8 episodes across 1 season of Hey Detective, Your Backpack is Open! are out and available to stream.

Is there a Season 2 of Hey Detective, Your Backpack is Open!?

No — Hey Detective, Your Backpack is Open! ended after 1 season, so there is no Season 2.