Kimi wa Petto

AKA
You're My Pet
Tramps Like Us

After a terrible day at work and a bad break up, Iwaya Sumire played by Koyuki returns home sad, depressed, and most of all lonely. However, at the front of the apartment she finds an unconscious young man lying in a cardboard box. Feeling sorry for him, she takes him into her home and nurses him back to health. As the young man, played by Matsumoto Jun, gets better he begins to like her place and resolves not to leave her. In fact, he even professes that he'll do anything she wanted if she allowed him to stay. Sumire looked over at the picture of her golden retriever that she had when she was a child and jokingly said to him, "You can stay if you become my pet."