Princess Agent Reborn

Sheng Qianyu was an agent who accidentally time traveled to the ancient time as the third daughter of King Yu. Yet the original owner of the body seemed to be unfavored by her family and lived a hard time before. Meanwhile, King Xuan got close to Sheng Qianyu and offered her a cooperation. What would he like to do? Anyway, it wouldn't bother Sheng Qianyu, for she had a firm tit-for-tat belief and would defeat her enemy no matter what!