Essential·Core entries only — skip filler and side content

1. 1Oshiri TanteiSeason 1
2. 2Oshiri Tantei 2nd SeasonSeason 2
3. 3Oshiri Tantei 3rd SeasonSeason 3
4. 4Oshiri Tantei 4th SeasonSeason 4
5. 5Oshiri Tantei 5th SeasonSeason 5
6. 6Oshiri Tantei 6th SeasonSeason 6
7. 7Oshiri Tantei 7th SeasonSeason 7
8. 8Oshiri Tantei 8th SeasonSeason 8
9. 9Oshiri Tantei 9th SeasonSeason 9
10. 10Oshiri Tantei 10th SeasonSeason 10

Complete·Everything including OVAs, specials & side stories

1. 1Oshiri Tantei
2. 2Oshiri Tantei: Mina to Machi no Tuk-tuk ChaseOptional ONA
3. 3Butt Detective: A Wind-Breaking Victory DanceOptional MUSIC
4. 4Oshiri Tantei Movie 1: Curry Naru JikenOptional MOVIE
5. 5Oshiri Tantei Movie 2: Tentoumushi Iseki no NazoOptional MOVIE
6. 6Oshiri Tantei Movie 3: Sufure-tou no HimitsuOptional MOVIE
7. 7Oshiri Tantei Movie 4: ShiriartyOptional MOVIE
8. 8Oshiri Tantei: Cosmic FrontOptional TV
9. 9Oshiri Tantei Movie 5: Saraba Itoshiki Aibou (Oshiri) yoOptional MOVIE
10. 10Oshiri Tantei Movie 6: Star and MoonOptional MOVIE
11. 11Oshiri Tantei 2nd Season
12. 12Oshiri Tantei 3rd Season
13. 13Oshiri Tantei 4th Season
14. 14Oshiri Tantei 5th Season
15. 15Oshiri Tantei 6th Season
16. 16Oshiri Tantei 7th Season
17. 17Oshiri Tantei 8th Season
18. 18Oshiri Tantei 9th Season
19. 19Oshiri Tantei 10th Season