After a car accident kills her parents, Ayumi and her younger brother are adopted by their relatives, separately. Ayumi is forced to quit school and work in her aunt's husband's Inn. Ayumi's only friend in the inn is Lin who is an illegal foreign worker. When she runs into troubles, she has 3 guardian angels who takes turn to help her: her aunt, Lin, and Sasaoka Yuzuri, the son of a politician and who has a promising future. Yuzuri's interest in her, however, incurs the jealousy of her cousin and the wrath of her uncle who loves his own daughter Yuriko very much. In the meanwhile, she also has to find ways to bring her brother under her own protection, after she finds out that the Aomori family does not welcome him at all.