Teenage Lina saves Evan, a blind wealthy heir, and they pledge their love with a gem necklace. To save Evan’s life, she is forced to donate her corneas and lives in seclusion for seven years, raising twins alone. Seven years later, the children collect trash to help their sick mother and chance upon Evan’s father Blake, unlocking the secret of their origin. Suffering amnesia, Evan mistakes another woman for his savior. Lina enters the manor as a laundress and eases his migraine with her herbal formula. When their daughter is diagnosed with leukemia, Evan donates bone marrow, and a DNA test proves their blood bond. In the end, Sarah is imprisoned, Blake repents and makes amends, and the four reunite after countless hardships.