Title: Sekai no Owari ni Saku Hana / 世界の終わりに咲く花
Genre: (mobile phone) drama
Episodes: 12 (joined in one movie)
Broadcast: BeeTV, from 20 September 2010
Cast: Umika Kawashima, Aoi Nakamura
Thanks you very much iJoel for the links!
There are 2 specials: Making of 5th season of Kinpachi-sensei and the last 12th 4 hour long special, which run after 8th season.
Title: パーティーは終わった / Party wa Owatta / The Party is Over
Broadcast period: February 1, 2011
Cast: Naka Riisa, Koide Keisuke, Narimiya Hiroki, Takaoka Sosuke, Hayashi Kento, Nagayama Kento
Synopsis: “Party wa Owatta” is about a popular manga-ka, Toake (Naka), meeting five guys at a party, and she imagines “dream love stories” with the guys. There is a scene in which Naka dances with one of the “boyfriends”, Koide Keisuke, and she said, “He was just like a prince… celebrity aura was all around him.”