Nyan Koi!

Nyan Koi! (にゃんこい!, lit. "Meow love!") is a manga created by Sato Fujiwara. It started serialization on Flex Comix's free webcomic FlexComix Blood on August 10, 2007. An anime adaptation premiered on October 1, 2009 in Japan.

North American anime distributor Section23 Films announced that Sentai Filmworks has licensed the series. The first season complete set was released on December 14, 2010.

Story
Junpei Kosaka is a second-year high school student who despises cats and has an allergy to them. It just so happens that his high school crush is Kaede Mizuno, a girl who adores cats.

One day, while walking home from school, Junpei kicks an empty can and unfortunately breaks the local neko-jizō-sama (guardian deity of cats). He finds he can now understand what cats are saying, including his family's own ill-tempered cat, Nyamsus. However, if he does not grant 100 wishes to cats, he will turn into a cat himself and die from his own allergy.

Other Sources

 * www.animenewsnetwork.com