Nintama Rantarou: Ninjutsu Gakuen Nyuugaku Annai no Dan
Japanese title: 忍たま乱太郎 忍術学園入学案内の段
Type: TV Special
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Nov 3, 2017
Duration: 10 min
Rating: G - All Ages
Studios: Ajia-do
Producers: NHK
Genres: Comedy
Demographics: Kids

People who wants to entroll into Ninjutsu Academy, gather now! Rantarou, Kirimaru, Shinbei and their friends present the glamor of Ninjutsu Academy as a commemoration of the 25th anniversary of the  Nintama Rantarou TV anime.

(Source: Nintama Rantarou Wiki)

This special concludes the 25th anniversary of the anime.