Season 1 (2001)
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.
Release date: 2001-10-02
Director: Yusuke Yamamoto
Episodes (51):
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1. Okojo-san has arrived!/Okojo-san goes to the hospital
Release date: 2001-10-02
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2. Okojo-san's Shiawase-sou adventure/Laughing Saeki
Release date: 2001-10-09
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3. Okojo's grave/The enemy is a cleaning machine
Release date: 2001-10-16
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4. Kojopii goes to paradise/Kojopii's campus life
Release date: 2001-10-23
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5. Kojopii's secret/Kojopii vs Tacchin
Release date: 2001-10-30
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6. Tachhin's tears/Kojopii's nightmare
Release date: 2001-11-06
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7. Kojopii's makeover!/Kojopii in love
Release date: 2001-11-13
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8. The fantastic hiking/Cosmos-hata's Tsukahara
Release date: 2001-11-20
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9. Life with Kojopii/There is paradise in Kotatsu
Release date: 2001-11-27
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10. Yuki, Yuuta and Karaage/Leader Okojo! Appearance Chapter
Release date: 2001-12-04
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11. Choruri and Nezumi-dono/I like Kojopii
Release date: 2001-12-11
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12. Battle! Christmas tree/Kojopii's Merry Christmas
Release date: 2001-12-18
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13. Test for Leader Okojo!/Tsuchiya returns home
Release date: 2001-12-25
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14. Chichi's memories/Kojopii, TV debut
Release date: 2002-01-08
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15. Kojopii has been takened away
Release date: 2003-01-15
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16. The mystery of the missing drawing/Choruri's happiness
Release date: 2003-01-22
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17. Choruri VS Watabokori/Leader Kojopii! Battle Chapter
Release date: 2003-01-29
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18. Hari-nezumi is high-class?/Mayumi's love letter battle
Release date: 2003-02-05
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19. Mayumi's love letter battle/Save Itachi household!
Release date: 2003-02-12
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20. Tsukahara, day of dreams/Leader Kojopii! Duty Chapter
Release date: 2003-02-19
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21. Mystery of Ferret/Kojopii becomes a father
Release date: 2003-02-26
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22. Let's grow it! Seed of dreams/Kojopii flies in the sky
Release date: 2003-03-05
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23. Kojopii is trapped/Motemote's condition
Release date: 2003-03-12
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24. Kojopii becomes wild
Release date: 2003-03-19
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25. Leader Kojopii! Counterattack Chapter/Under the cherry blossoms
Release date: 2003-03-26
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26. Okojo VS Okojo/Thy name is Kojuru
Release date: 2003-04-02
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27. Kojuru goes to Shiawase-sou/Leader Okojo! New school term Chapter
Release date: 2003-04-09
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28. Tsubame is being targeted!/Kojuru's favourite thing?
Release date: 2003-04-16
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29. Ojuko and Granny/Leader Okojo! Hospitalised Chapter
Release date: 2003-04-23
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30. Death match! Carp's streamer/I want to meet my idol!
Release date: 2003-04-30
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31. Kagaku-kun's terrifying experiment/Leader Okojo! Teaching Chapter
Release date: 2003-05-07
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32. Being a mangaka is tiring/Hide-and-seek competition
Release date: 2003-05-14
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33. Miyu is a great trimmer?/Leader Okojo! Prosperity Chapter
Release date: 2003-05-21
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34. The lost wild nature/Yearning of humans
Release date: 2003-05-28
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35. I cannot say "Thank you"/Leader Okojo! Home visit Chapter
Release date: 2003-06-04
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36. Kagaku-kun's second challenge/Okojo VS Mecha-Okojo
Release date: 2003-06-11
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37. Kojuru and Choruri/Leader Okojo! Purchasing department Chapter
Release date: 2003-06-18
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38. Mayumi's date battle/Tsukahara's Okojo cut
Release date: 2003-06-25
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39. A wish upon a star/Leader Okojo! Pool Chapter
Release date: 2003-07-02
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40. Kojopii's return of kindness/Mayumi's pair-look battle
Release date: 2003-07-09
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41. Leader Okojo! Seaside School Chapter/Part-time Panic
Release date: 2003-07-16
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42. Poolside crisis!/Tsuchiya dances in delusion
Release date: 2003-07-23
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43. Colorful Kojopii/Leader Okojo! Guide to life Chapter
Release date: 2003-07-30
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44. Tacchin, a start in love/Kojoru, why are you white?
Release date: 2003-08-06
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45. I am Kojopii?/Hasegawa, afternoon times
Release date: 2003-08-13
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46. Tacchin's love and hatred/Heart-throbbing panic
Release date: 2003-08-20
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47. Yearning for Okojo/Leader Okojo! Summer holiday Chapter
Release date: 2003-08-27
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48. Choruri's marriage/Mecha-Okojo's counterattack
Release date: 2003-09-03
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49. I like you! Tsuchiya/Leader Okojo! Sports meet Chapter
Release date: 2003-09-10
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50. Warm Kojoru/Leader Okojo! Finale Chapter
Release date: 2003-09-17
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51. Shiawase-sou's Okojo-san
Release date: 2003-09-24
Crew - click here to expand
Takahisa Ishino - Sound Effects, Takahiro Kishida - Character Designer, Yoku Shioya - Sound Director, Satoru Nishizono - Series Composition, Yusuke Yamamoto - Series Director, Masamichi Amano - Music, Ayumi Uno - Comic Book