In the border town of the Dorn Kingdom, there is a beautiful and kind girl Lily. One day, when she was collecting medicine in the forest as usual, she found a seriously injured prince. Lily treats the prince and takes care of him. The prince is very grateful to Lily and appointed Lily as a royal pharmacist. After entering the castle, Lily still studied various herbs to help more people. She also helped the queen to cure the rash on her face, and the queen became more beautiful. The prince was mo