Yu Fei and rich girl Ye Lin become best friends. Ye Lin discovers that her fiancé is in love with Yu Fei, who once saved him. She misunderstands Yu Fei and takes revenge. Later, it was discovered that Yu Fei was his half-sister, whose life had been misplaced due to the exchange of mothers. Yu Fei is forgiving, and although Ye Lin can't let go of her dazzling life, when they face the family crisis together, the two work together to protect the family's glory, and eventually become true sisters and gain happiness.
