Tsukasa and Tsugumi meet when they both happen to discover an injured dog left on the side of the road. The two come from completely different social circles. Tsukasa is a man of high society whom Tsugumi could never have imagined running into under normal circumstances. He's set to marry a proper lady in order to carry on the family name in good repute, and that means Tsugumi hasn't got a chance with him. She needs to give up her silly fantasy, but next thing she knows, he's brazenly kissing her lips right in front of his potential marriage partners.