The protagonist, Miss Puff, is an ordinary person living in a big city, lonely and normal just like you and me. She enjoys keeping goldfish and prefers to walk alone, until one day, she meets the one destined to be waiting for her in life... There is a kind of illness where, when you care too much about your loved one, you end up forgetting them. In fact, many people in this city are just like Puff, searching for true love between possession and freedom.