Nyan Koi! - S01

Junpei Kousaka is a second-year high school student who is allergic to cats, a problem that has made him hate cats and everything about them. Unfortunately for him, he is surrounded by cat lovers: his family, his estranged childhood friend, and even his crush Kaede Mizuno. One day, on his way home from school, Junpei casually tries to kick an empty can into the trash, but misses badly. Instead of landing in the garbage, the can breaks the head off a cat deity statue. That fateful day, he is cursed with the ability to understand cat speech. But he has to keep the curse a secret from everyone else, because anyone who finds out will become more accident-prone and share the same fate as him. With guidance from his cat Nyamsus and no other choice left, Junpei now has to do a hundred good deeds for cats to lift the curse. If he fails to complete the task, he will turn into a cat, and given his allergy, that would be a death sentence for him!