Episode 4 - Dad, I'll clean up the family

Orphaned young, Xiaocao endured hardship until adopted by the kind Chen Qing and his wife. Despite financial struggles, they ensured she attended university. Years later, as a successful scientist, Xiaocao returns to find her adoptive parents suffering under their biological son, Chen Qiang. Can she protect the family who gave her a second chance, or will hidden family secrets destroy them all?