Introduction: Qin Fei is an ace agent in a special school. She was betrayed by her partner and lover when she was performing a mission in the Bermuda Triangle. She fell into the sea from the boat and into a crack of time and space, meeting a vampire on first day. The battle of a modern female agent against the ancient "old Draculas" in full swing. [Original Manhua](https://m.ac.qq.com/comic/index/id/544367)

Xiao Zhenye fell in love with Mu Zijin at first sight. For him, he became an emperor while young; for him, he pacified the world and imprisoned him in the palace; but he was repeatedly hurt by his ignorance of love. And Mu Zujin didn't wish to stay with one person for long. To restore the country, he became Xiao Zhenye's "demon concubine", bringing disaster to his world. In the end, he committed suicide in front of Xiao Zhenye. Xiao Zhenye followed suite, committing suicide, but the two simultaneously returned to their childhood. What choice will Xiao Zhenye make this time...? (Source: Kuaikan, translated)