@LightningLeaf Or she is, but she still bears the scars of her previous life. In this very update, she mentions her lack of romantic experience. This is part of a larger genre pattern. A lot of isekai reincarnators had lonely and unfulfilling former lives as shut-ins, victims of bullying, office drones, overworked employees of black companies, and the like.
Their previous bad experiences drive them to make a fresh start in their new lives w/o a second thought. They had little to miss in their former lives. However, they also cause them to be as romantically inexperienced as the youngsters they look like. Esp. when they find themselves in premodern societies where teens dating is not so common an experience.