Kumiko "Yankumi" Yamaguchi enters Shirokin Gakuen Private School to become a math teacher. She's assigned as the homeroom teacher for class 2-4, populated by a gang of delinquents. At first, the class tries everything to rattle her cage, but to no avail. In a short period of time, Yankumi gains the respect of the class. But what the school doesn't know is that she's the heir to the Oedo Group, a powerful Yakuza clan. So while Yankumi struggles to excel in her career as a teacher, she must also keep her Yakuza background a secret.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Arrival of the Rookie Teacher with a Secret!! | 2004-01-06 | 30 min |
| Season 1 | Episode 2 | Duel!! Shin vs. Ojou? | 2004-01-13 | 30 min |
| Season 1 | Episode 3 | Kuma's First Experience? | 2004-01-20 | 30 min |
| Season 1 | Episode 4 | Ojou with Blond Hair! Who's the Real Criminal? | 2004-01-27 | 30 min |
| Season 1 | Episode 5 | Oedo Group's Danger! | 2004-02-03 | 30 min |
| Season 1 | Episode 6 | Kyo-san's Great Act? | 2004-02-10 | 30 min |
| Season 1 | Episode 7 | What is Mingenhiinaa!? | 2004-02-17 | 30 min |
| Season 1 | Episode 8 | A School Field Trip with Angry Waves!! | 2004-02-24 | 30 min |
| Season 1 | Episode 9 | School Battle Breaks Out Without the Moral Code!? | 2004-03-02 | 30 min |
| Season 1 | Episode 10 | The Targeted School! | 2004-03-09 | 30 min |
| Season 1 | Episode 11 | Shin-san is Going to Quit School!? | 2004-03-16 | 30 min |
| Season 1 | Episode 12 | Shirokin Gakuen is Closing...?! | 2004-03-23 | 30 min |
| Season 1 | Episode 13 | Yankumi's Final Duty | 2004-03-30 | 30 min |
| Writing | Yasuko Kobayashi | Scenario Writer |
| Sound | Tomoki Hasegawa | Sound |
| Sound | Aki Yashiro | Vocals |
| Production | Masao Maruyama | Producer |
| Directing | Yuzo Sato | Series Director |
| Writing | Kozueko Morimoto | Original Story |
| Art | Kazuhiro Takahashi | Art Direction |
