The Deep Courtyard Behind the Vermilion Gates

A long-planned son-exchange plan has brought about earth-shaking changes to the three siblings. They have an unidentified mother, a mysterious master, and an ambitious husband. All the changes came so suddenly, Wen Jinyu had to grow up quickly, support the Wen family, help her young brother, take care of her weak sister, yearning for a free world, but she was destined to be trapped in the backyard for the rest of her life...