is a Japanese manga series written and illustrated by Sato Fujiwara. It started serialization on Flex Comix's web manga FlexComix Blood on August 10, 2007. An anime adaptation premiered on 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 by Seraphim Digital.
Plot
Junpei Kōsaka is a second-year high school student who is allergic to cats, and because of this he hates the sight of them. As luck would have it, his high school crush, Kaede Mizuno, absolutely 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, to atone for the broken statue, he must now grant 100 wishes to cats, or he will turn into a cat himself and die from his own allergy.
Characters
Human characters
Junpei is the protagonist of Nyan Koi! who has a chronic allergy and, thereby, resentment of cats. Ironically, everyone around him seems to love cats, including his mother and sister (which does not help his predicament). To complicate matters, he accidentally destroys the statue of a cat deity, and to atone for it, he must make use of his new-found ability of communicating with cats to fulfill the requests of one hundred cats. If he does not atone properly, he will be transformed into a cat, and die due to his allergy. Furthermore, should anyone find out about the curse, not only will the curse get stronger and enact faster, but the person who found out will become more unlucky and accident prone, such seen when Akari told Junpei that she knew he was cursed and almost fell down the temple stair. His love interest is Kaede Mizuno, but is starting to become aware of the feelings of the other girls around him.
Kaede is Junpei Kōsaka's classmate and crush who is initially oblivious of his feelings for her. She is described as athletic, smart and cute. Despite loving cats, her family owns four dogs, and cats tend to avoid her as she not only carries their smell, but gets overenthusiastic in handling them. This is mainly due to her only having experience with the big dogs her family owns and not realizing that cats are much different creatures. She tends to be airheaded, react to things naively and misunderstand people. Kaede meets Junpei when she falls on him from a tree trying to rescue a kitten that later climbs down itself. As a member of the track and field team, Kaede can run faster and longer than the average person, especially Junpei. She later develops feelings for Kōsaka.
Kanako is Junpei Kōsaka's classmate and childhood friend who has a fondness for cats and Junpei. She is introduced in the series wearing manba make-up, which is a result of Kanako misunderstanding Junpei's intention of showing her Nyamsus doll to a girl. During Tokiwa High School's cultural festival, her makeup is washed off. Later, Junpei passes on the caba cat Kumaneko's thanks for taking care of him and Kanako reconciles with Junpei when he reveals that he still has Kanako's doll. Kanako stops wearing her make-up and she becomes popular with Tokiwa's male students. She has a well-endowed body, and is not afraid to flaunt it, but often gets unwanted attention and is groped by Nagi Ichinose. Kanako is very forceful and often gets Junpei to purchase her food and merchandise at his own expense. Despite being romantically attracted to Junpei since childhood, her brash, quick-tempered personality frequently gets in the way of communicating her feelings for him. Kanako has a younger brother named Toru, who is dating Junpei's younger sister.