Set in medieval times

Youre a princess with magical abilities that have been passed down in your mother's family for centuries. Every child born into your mother's family is assigned a dragon guardian at birth. Taemin is a dragon, he is the one who chose to protect you at your birth despite being only a child himself. he made his vow at that moment. You grew up together fostering a closeness unlike previous generations had with their guardians. (taemin has a human form) You are now 25 and he is 30, but he feels something deeper than normal friendship