Yılı: 2001
Türü: TV Serisi
Bölüm Sayısı: 51
Yapımcılar: Age, RADIX, Sotsu Agency, TV Tokyo

Haruka Tsuchiya, Okojo-san isimli evcil bir hayvana sahip olan sıradan bir üniversite öğrencisidir. Okojo-san, kuzeyde dağların birinde doğmuş ve evcil hayvan dükkanlarının birine satılmak için getirilmiştir. Evcil hayvan dükkanının dışında olmaya karar vererek bir kaçış planı yapar ve Haruka'nın evine kaçar. Her zaman komik ve garip olaylar ikisinin etrafında ve onların yakınında olan insanlar ve hayvanlara olmaktadır.

Bölümler:

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