Shao Weiwei has a sister named Shao Rourou, but this sister doesn't seem to like her very much, so they rarely meet. The appearance of Song Chen allowed Shao Weiwei to find her sister, understand her sister's existence, and reveal her sister's true face. Songchen used her own light to illuminate the dust in the corner, making her presence visible.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.