Baby, you're so sweet Manga

An Ruoxi was destined to be the beloved of Gu Qingcheng, a member of the vampire royal family. However, after experiencing three past lives, she lost her memories and became an ordinary person, enrolled in an elite boarding school. Gu Qingcheng was betrayed by his younger brother, seriously wounded, and forced to flee to the human world, where he was luckily rescued by An Ruoxi. As they fought against dangerous adversaries together, a deep affection began to grow between them. Through numerous trials, An Ruoxi gradually regained her memories and powers, teaming up with Gu Qingcheng to take back his kingdom.