

Episode 12: “After the Third Time / The Unburied Secret / Progress in Confinement Part 2 / Naughty Teacher Kaere”
- 12 of 13
- September 19, 2009
- 23 min
- Aired
From Acino, the anime encyclopedia
| Series | Zan Sayonara Zetsubou Sensei |
|---|---|
| Episode | 12 of 13 |
| Original air date | September 19, 2009 |
| Episode length | 23 min |
| Studio | Shaft |
| Previous episode | Episode 11: “House of the Girl in Glasses / Progress in Confinement / The Clothing Seen By the Sage Leglipht” |
| Next episode | Episode 13: “Revenge of the Shit / We Are Linus / The Optimism Prize / Kiyohiko Night” |
“After the Third Time / The Unburied Secret / Progress in Confinement Part 2 / Naughty Teacher Kaere” is episode 12 of the anime Zan Sayonara Zetsubou Sensei. It first aired on September 19, 2009.
Summary
A summary of this episode has not been written yet.
Music in this episode
- ED 2“Kurayami Shinchuu Soushi Souai” — Hiroshi KamiyaAnimeThemes
Episode guide
About the series

Zan Sayonara Zetsubou SenseiTV series · 2009 · 13 episodes · Shaft · ★ 7.86
Zan Sayonara Zetsubou Sensei is a 2009 Japanese anime television series based on the manga series by Kouji Kumeta. It is animated by Shaft. It aired from July 5, 2009 to September 27, 2009, with 13 episodes.
Read the article →References
- “Zan Sayonara Zetsubou Sensei”. Kitsu. Retrieved October 23, 2026.
- “Zan Sayonara Zetsubou Sensei”. MyAnimeList. Retrieved October 27, 2026.
- “Zan Sayonara Zetsubou Sensei”. AnimeThemes. Retrieved October 23, 2026.
Episode titles and air dates come from Kitsu. The summary is written by Acino with AI assistance and checked so that it does not copy other sites.