Unaired episode included with the Blu-ray box set.
- Other Title: Nande Koko ni Sensei ga!? Nande Koko ni Sensei-tachi ga!?, Why the hell are you here, Teacher!?, Nande Koko ni Sensei ga!? Special, なんでここに先生が!? なんでここに先生たちが!?, Why the Hell are You Here, Teacher!?: Thirteenth Period, Why the Hell are You Here, Nankoko, Why the Hell Are You Here
- Status: Completed
- Sub/Dub: Anime Dub
- Anime Type: Special
- Genres: Comedy, Ecchi, School, Seinen, Romance
- Characters: Hazakura, Hikari, Kojima, Kana, Matsukaze, Mayu, Satou, Ichirou, Suzuki, Rin, Tachibana, Chizuru, Takahashi, Takashi, Tanaka, Kou
- Score: 6.85
- Rank: 4614
- Popularity: 2674