It is announced today that NTT DoCoMo's online-video service dTV will start streaming a four-episode web anime based on Yusei Matsui's Ansatsu Kyoushitsu/Assassination Classroom manga series on March 11 as its first exclusive streaming anime title. It will be posted every Friday. The service has also offered the two TV anime series.

The five-minute short series titled "Assassination Classroom: Extracurricular Lesson Edition" covers the two manga chapters in the 9th tankobon volume which have not been adapted in to anime yet: 78th "Takebayashi no Jikan" (Takebayashi's Time) and 79th "Shihaisha no Jikan, Ni Jikanme" (Sovereign Time, 2nd Period), both featuring Koutaro Takebayashi, an otaku student in class 3-E.

9th and the latest 18th volume covers

CM for the TV anime 2nd season's DVD/Blu-ray

CM for the TV anime 2nd season's OP song "QUESTION"

via: Oricon Style

(C) Yusei Matsui/Shueisha, Anime "Ansatsu Kyoushitsu" Production Committee