Wizrain Oukoku Monogatari ~Ryuu ga Hanayome~

Elna, the adopted daughter of a baron’s family, endures a life of hardship and mistreatment until memories of her previous life suddenly return. She remembers being the dragon who protected the kingdom and carrying a hero on her back through their adventures. With those memories guiding her, Elna sets out for the royal palace. There she meets the young Prince Cross and recognizes him as the very same hero, reborn by fate.