When they met when they were young, she was the daughter of a noble family, and he was the noble son. When they grew up, her family was in poverty, but he eventually became an emperor. He built Changle Palace for her, and she tried to open her heart for him. However, the harem was not a peaceful place after all. The long-lasting love he thought he had trapped her in a cage, and the long-term love she thought was also a trap.