Yu Qingyan, the number one mercenary in the 21st century, was conspired to travel to the ancient Xuanyuan Kingdom and became a famous waste in the general's palace. In order to find herbs that could repair the Dantian, she went to the Fantasy Forest and accidentally met Yan Mingyu who was seriously injured. After he was healed, he was placed in a cave nearby. In order to fulfill the wish of the original owner of this body, he killed Yu Tingxin who bullied her, imprisoned Yan Duanze in a water prison, and helped Yan Chenxi get the throne that should belong to him. Little did he know that Yan Mingyu had been paying attention to her. The road to revenge is not easy, but finding true love is not easy. People's hearts are treacherous. Dear readers, revenge is about to begin...