Noriko Iriyama, Jun Shison,
Tramps Like US Sumire Iwaya works as a journalist at a major newspaper. She is a career woman with both wit and charm, having looks fit for a model and the brains to graduated from both Tokyo University and Harvard. But she is terrible at relationships. She was dumped by her boyfriend who she thought she would marry, and on top of that, she was demoted at work to bring her to her lowest point in life.
One day, she takes in a beautiful young boy who she finds homeless in a cardboard box in front of her home.
She sees similarities in the boy and her beloved dog Momo that she used to own, and suggests that he live with her as a pet. Her time spent with him gradually becomes more and more relaxing…