Doukyonin wa Hiza, Tokidoki, Atama no Ue.

Synopsis

While visiting his parents' grave, novelist Subaru Mikazuki has a chance encounter with a stray cat and brings it home to live with him. He watches the cat behave in unexpected ways leading him to come up with all kinds of ideas for his next novel to share with his new editor, Atsushi Kawase. While working nonstop on his novel to meet a deadline, the cat starts scattering food on the ground and scratching the door to his room. The cat reacts angrily when Subaru tosses the scattered food into the trash. The next day, the cat scatters food again and Subaru overexerts himself causing him to collapse. Concerned about him not answering his phone, Kawase breaks into Subaru's home to wake him up and Subaru sees that he ate the scattered cat food. The events of the episode are then told from the cat's perspective as the cat followed Subaru because he had food. Unaware that cat food is not intended for human consumption, she offered some of her own food to return the favor after seeing him working hard without eating, and got angry for wasting it as food was hard to come by while she was a stray.

(Source: Wikipedia)