On a snowy night, because Su Qi's father had once saved the elderly lady of Prince Yi's residence, when Su Qi is attacked by a beggar, the heir of Prince Yi's residence, Yan Chen'an, not only rescues her but also adopts her into his household. From then on, Su Qi becomes Yan Chen'an's adoptive sister, and they grow close, developing feelings for each other. However, their differing statuses prevent them from confessing their love.
