Since the day that Junpei kicked a soda can and accidentally knocked the head off of a cat statue on his way home from school, he's been cursed with a spell that transforms him into a cat. The only chance he has to break the curse is by carrying out one hundred good deeds protecting cats in his town. To make matters worse Junpei is allergic to cats! The curse also allows him to hear conversations between his and other cats. Although he is ridiculed by his classmates for being able to "hear cats' conversations," it also brings him closer to Mizuno, a cute classmate that he has a crush on. Later, Junpei learns from a priest's cat that he must not let any others know of his curse. The results would be two-fold: the bearer of the news would also be cursed and the curse would spread at a faster rate!