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Oshiri Tantei watch order

Oshiri Tantei has 20 anime entries in all: 12 TV seasons, 8 optional extras. The listed main story takes about 41 hours (47 hours with listed extras). This is a suggested release-date sequence, not a required chronology.

Suggested release sequence

Numbers count the main story. Entries marked “opt” are optional extras you can watch whenever you like.

  1. 1
    Oshiri Tantei
    Main storyTV · 201810 eps3 h 20 min
  2. opt
    Butt Detective “Auto Rickshaw Chase in Port Town”
    Optional extraONA · 20171 eps6 minutes
  3. 2
    Oshiri Tantei 2
    Main storyTV · 201916 eps5 h 20 min
  4. opt
    Oshiri Tantei: Curry Naru Jiken
    Optional extraMovie · 201929 minutes
  5. 3
    Oshiri Tantei 3
    Main storyTV · 201913 eps4 h 20 min
  6. 4
    Oshiri Tantei 4
    Main storyTV · 202013 eps4 h 20 min
  7. opt
    Oshiri Tantei: Tentou Mushi Iseki no Nazo
    Optional extraMovie · 202040 minutes
  8. 5
    Oshiri Tantei 5
    Main storyTV · 202113 eps4 h 20 min
  9. opt
    Oshiri Tantei: Sufuure-tou no Himitsu
    Optional extraMovie · 202138 minutes
  10. opt
    Oshiri Tantei: SHIRIARTY
    Optional extraMovie · 202250 minutes
  11. 6
    Oshiri Tantei 6
    Main storyTV · 202213 eps4 h 20 min
  12. opt
    Oshiri Tantei: Cosmic Front
    Optional extraSpecial · 20232 eps50 minutes
  13. 7
    Oshiri Tantei 7
    Main storyTV · 20238 eps2 h 40 min
  14. 8
    Oshiri Tantei 7 Part 2
    Main storyTV · 20237 eps2 h 20 min
  15. opt
    Oshiri Tantei: Saraba Itoshiki Oshiri yo
    Optional extraMovie · 20241 h 11 min
  16. 9
    Oshiri Tantei 8
    Main storyTV · 202415 eps5 hours
  17. opt
    Oshiri Tantei: STAR AND MOON
    Optional extraMovie · 20251 h 16 min
  18. 10
    Oshiri Tantei 9
    Main storyTV · 20258 eps2 h 40 min
  19. 11
    Oshiri Tantei 9 Part 2
    Main storyTV · 20257 eps2 h 20 min
  20. 12
    Oshiri Dandy the Young
    Main storyTV · 2026Airing now

Built from AniList relation data and sorted by release date where available. Side stories and specials may be optional; relation links alone do not make chronology compulsory.

Oshiri Tantei watch order FAQ

What order should I watch Oshiri Tantei in?
A practical starting point is release order: Oshiri Tantei (2018), then Oshiri Tantei 2 (2019), then Oshiri Tantei 3 (2019), then Oshiri Tantei 4 (2020), then Oshiri Tantei 5 (2021), then Oshiri Tantei 6 (2022), then Oshiri Tantei 7 (2023), then Oshiri Tantei 7 Part 2 (2023), then Oshiri Tantei 8 (2024), then Oshiri Tantei 9 (2025), then Oshiri Tantei 9 Part 2 (2025), then Oshiri Dandy the Young (2026). You do not have to follow narrative chronology exactly. 8 optional extras are listed separately. This list follows anime relation data for the selected title.
How many seasons does Oshiri Tantei have?
Oshiri Tantei has 12 TV seasons, plus 8 optional extras. Counts reflect anime entries linked to this title.
How long are the listed Oshiri Tantei entries?
About 41 hours for the listed main story, or 47 hours with listed optional extras (some entries have no listed length yet); runtimes use catalog episode and duration data.
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