Nyan Koi! EP1 - The Ugly Cat and The Cursed High Schooler

Junpei Kousaka's most important matters were to stay away from cats, due to his allergy to them, and his crush on his classmate Kaede Mizuno, until he accidentally damages the statue of a cat deity and is cursed with the ability to talk to cats and the task of attending 100 requests from them, with the risk of be transformed into a cat himself if he fails. The first quest he receives is to help the stray cats in the local park who have been tormented by a stranger leaving them traumatized. The tormentor later turns out to be Kaede who has an extreme fondness for cats to the point of smothering them.