Softenni

Softenni (そふてにっ, Sofuteni) is a Japanese manga written and illustrated by Ryō Azuchi. Beginning serialization in Mag Garden's Comic Blade in 2008, Softenni consists of five volumes as of 2011. An anime adaptation by Xebec began airing April 7, 2011 on Tokyo MX.

Story
The series follows Shiratama Middle School student Asuna Harukaze and her fellow teammates, who are all members of their school's Soft Tennis club. Their team are intent on winning the soft tennis national championship but must also deal with the trials, twists and turns of their comedic, adventurous school life.