When Yoriko Kinui was one of her, she decided to confess to her classmate Kanzaki, who had been unrequited love for her, and wrote her love letter. However, the day before she decided to hand over her letter, Kanzaki died in a car accident !! One year after that, Yoriko still ...!? Volume 1 !! - comicpark.net

A story of a rather spoilt girl raising a little dog without enough knowledge or care how to do it properly. She took the dog because of the guy she liked. She then met a boy, a son of a veterinarian who loved animal and didn't like at all seeing how she's taking care of the puppy. Their story starts from there.