Two specials that are based on bonus chapters in volume 3 of the manga:
 
1. "Sempai to Chocolate Factory (Sempai and Chocolate Factory)"
 
2. "Sempai to Chihiro no Kamikakushi (Sempai and Spirited Away)"

Second season of Teekyuu. 
Teekyuu is based on a sports comedy manga of the same name featuring four high school girls who belong to a tennis club. Although the amount of tennis they play is questionable.

The four girls of the Kameido High School tennis club play and don't play tennis in their side-splittingly funny daily lives. The new club member, Yuri Oshimoto, is forced to be the straightman to her idiotic upperclassmen. Then there's Kanae Shinjou, the stupidity-machine who can't play tennis even though she's in the tennis club; Marimo Bandou, the unpredictable super-pervert from Kansai; and Nasuno Takamiya, the air-headed, mysterious rich girl who tries to solve everything with money. Today, tomorrow, and the day after, regardless if they're all there or not, it's a tennis manga you can't help but roar in laughter at!? And in the fall of 2012, you might get caught up in the &ldquo;Teekyuu&rdquo; whirlwind even further!? 
(Source: Jmanga)

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