Season 1

A white ermine, known in Japan as an okojo, Okojo-san lives at an exotic pet store run by a greedy manager until one day he escapes. In the chaos following, he ends up unconscious in a garbage can, where college student Haruka Tsuchiya finds him. Mistaking him for a ferret, Tsuchiya takes Okojo home with him. At the Shiawase apartment complex, Okojo meets other pets, including the gerbil Chorori, and the various eccentric human tenants. With his friends, Okojo struggles to adapt to life with humans, vacuum cleaners, and all the other things that come with human society. The comedy is largely reliant on absurdity and Okojo's tendency towards melodrama.

1. 1. Okojo-san has arrived!/Okojo-san goes to the hospital

   2001-10-02 · 25m

2. 2. Okojo-san's Shiawase-sou adventure/Laughing Saeki

   2001-10-09 · 25m

3. 3. Okojo's grave/The enemy is a cleaning machine

   2001-10-16 · 25m

4. 4. Kojopii goes to paradise/Kojopii's campus life

   2001-10-23 · 25m

5. 5. Kojopii's secret/Kojopii vs Tacchin

   2001-10-30 · 25m

6. 6. Tachhin's tears/Kojopii's nightmare

   2001-11-06 · 25m

7. 7. Kojopii's makeover!/Kojopii in love

   2001-11-13 · 25m

8. 8. The fantastic hiking/Cosmos-hata's Tsukahara

   2001-11-20 · 25m

9. 9. Life with Kojopii/There is paradise in Kotatsu

   2001-11-27 · 25m

10. 10. Yuki, Yuuta and Karaage/Leader Okojo! Appearance Chapter

    2001-12-04 · 25m

11. 11. Choruri and Nezumi-dono/I like Kojopii

    2001-12-11 · 25m

12. 12. Battle! Christmas tree/Kojopii's Merry Christmas

    2001-12-18 · 25m

13. 13. Test for Leader Okojo!/Tsuchiya returns home

    2001-12-25 · 25m

14. 14. Chichi's memories/Kojopii, TV debut

    2002-01-08 · 25m

15. 15. Kojopii has been takened away

    2003-01-15 · 25m

16. 16. The mystery of the missing drawing/Choruri's happiness

    2003-01-22 · 25m

17. 17. Choruri VS Watabokori/Leader Kojopii! Battle Chapter

    2003-01-29 · 25m

18. 18. Hari-nezumi is high-class?/Mayumi's love letter battle

    2003-02-05 · 25m

19. 19. Mayumi's love letter battle/Save Itachi household!

    2003-02-12 · 25m

20. 20. Tsukahara, day of dreams/Leader Kojopii! Duty Chapter

    2003-02-19 · 25m

21. 21. Mystery of Ferret/Kojopii becomes a father

    2003-02-26 · 25m

22. 22. Let's grow it! Seed of dreams/Kojopii flies in the sky

    2003-03-05 · 25m

23. 23. Kojopii is trapped/Motemote's condition

    2003-03-12 · 25m

24. 24. Kojopii becomes wild

    2003-03-19 · 25m

25. 25. Leader Kojopii! Counterattack Chapter/Under the cherry blossoms

    2003-03-26 · 25m

26. 26. Okojo VS Okojo/Thy name is Kojuru

    2003-04-02 · 25m

27. 27. Kojuru goes to Shiawase-sou/Leader Okojo! New school term Chapter

    2003-04-09 · 25m

28. 28. Tsubame is being targeted!/Kojuru's favourite thing?

    2003-04-16 · 25m

29. 29. Ojuko and Granny/Leader Okojo! Hospitalised Chapter

    2003-04-23 · 25m

30. 30. Death match! Carp's streamer/I want to meet my idol!

    2003-04-30 · 25m

31. 31. Kagaku-kun's terrifying experiment/Leader Okojo! Teaching Chapter

    2003-05-07 · 25m

32. 32. Being a mangaka is tiring/Hide-and-seek competition

    2003-05-14 · 25m

33. 33. Miyu is a great trimmer?/Leader Okojo! Prosperity Chapter

    2003-05-21 · 25m

34. 34. The lost wild nature/Yearning of humans

    2003-05-28 · 25m

35. 35. I cannot say "Thank you"/Leader Okojo! Home visit Chapter

    2003-06-04 · 25m

36. 36. Kagaku-kun's second challenge/Okojo VS Mecha-Okojo

    2003-06-11 · 25m

37. 37. Kojuru and Choruri/Leader Okojo! Purchasing department Chapter

    2003-06-18 · 25m

38. 38. Mayumi's date battle/Tsukahara's Okojo cut

    2003-06-25 · 25m

39. 39. A wish upon a star/Leader Okojo! Pool Chapter

    2003-07-02 · 25m

40. 40. Kojopii's return of kindness/Mayumi's pair-look battle

    2003-07-09 · 25m

41. 41. Leader Okojo! Seaside School Chapter/Part-time Panic

    2003-07-16 · 25m

42. 42. Poolside crisis!/Tsuchiya dances in delusion

    2003-07-23 · 25m

43. 43. Colorful Kojopii/Leader Okojo! Guide to life Chapter

    2003-07-30 · 25m

44. 44. Tacchin, a start in love/Kojoru, why are you white?

    2003-08-06 · 25m

45. 45. I am Kojopii?/Hasegawa, afternoon times

    2003-08-13 · 25m

46. 46. Tacchin's love and hatred/Heart-throbbing panic

    2003-08-20 · 25m

47. 47. Yearning for Okojo/Leader Okojo! Summer holiday Chapter

    2003-08-27 · 25m

48. 48. Choruri's marriage/Mecha-Okojo's counterattack

    2003-09-03 · 25m

49. 49. I like you! Tsuchiya/Leader Okojo! Sports meet Chapter

    2003-09-10 · 25m

50. 50. Warm Kojoru/Leader Okojo! Finale Chapter

    2003-09-17 · 25m

51. 51. Shiawase-sou's Okojo-san

    2003-09-24 · 25m