A young girl sold into servitude is given the name "Seo-hye" by Kwon Yoon, the noble son of a powerful family. Despite her lowly status, Seo-hye finds herself drawn to Yoon's gentle nature, and he, too, begins...

One day, the protagonist "Iyori" witnesses the teacher she had a crush on kissing someone. She starts crying in shock, but is caught by her stepbrother "Natsume." What does he propose as a means of helping...