Azamukare Seijo to Shugoryuu no Konyaku

Philia, who grew up in an orphanage, is somehow able to use the "healing power" possessed by the daughters of royalty. Her powers were acquired, and she has been assigned to heal people from behind the scenes on behalf of Princess Rovetta. However, driven by jealousy, Rovetta schemed to bring Philia to the brink of death. Just as she has resigned herself to death, the dragon prince appears...

(Source: Mag Garden, translated)