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She, the top killer in the 21st century, was reborn after time travel and became the down-and-out daughter of three people in a cold house on the Xuanwu Continent. In her last life, she was considered useless and tortured since birth. In this life, she vowed to take revenge and take back everything that belonged to her. He, the cold and strange son of the Demon King, was erratic, but always appeared when she needed him. At first he only wanted to explore her secrets, but he blamed himself and felt guilty for being hurt. In order to protect Leng Lingqi, he did not hesitate to shed his magic power and gave up his position as the Demon King. At first she thought he was meddlesome and hated him, but who knew later...