Nyan Koi! manga is created by Sato Fujiwara with the anime adaptation October 1, 2009 in Japan. The series has been licensed by Sentai Filmworks and released in North America with English subtitles on December 14, 2010, and dubbed in English on December 31, 2013.
Junpei Kousaka 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 is a girl who adores cats.
One day, while walking home from school, Junpei kicks an empty can and unfortunately decapitates the local neko-jizou-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 from cats, he will turn into a cat himself.
As he lives his normal life he must complete the requests of the cats which makes him have a deeper relationship with the people in his life.
Human and feline characters both made up for the stories. The first cat character, Nyamsus, an elderly female cat taken care by the Kousaka family. Another main cat character is Tama, a young male who lives at the temple, and had a crush on Nyamsus.