When the king's fiancée, her own sister, vanishes mysteriously, Countess Iris is compelled to assume her sister's role in the royal palace. Whispers of the king's tyrannical reputation and alleged cursed lineage as the silver wolf haunt her thoughts. Despite her attempts to steer clear, circumstances lead to an unexpected night spent with the king. Much to her surprise, the feared monarch, believed to embody a ferocious beast, reveals a softer, more endearing side akin to a lovable puppy. Struggling against her initial perceptions, Iris finds herself unexpectedly drawn to the king in a way she never anticipated.