My Lord, Your Secret Identity Has Slipped Again

She was the ace secret agent of the 21st century and a top-tier beast tamer. A single tune from her zither could make every beast submit. After transmigrating, she became a princess adored by countless people and the supreme ruler of the continent. She had many identities and was unbelievably cool, with the Vermilion Bird and a divine dragon as her beast companions. He was the ruler of this world, commanding countless realms. Before meeting her, he thought the world was dull. After meeting her, he found it bursting with color, and he revolved around her alone. Teasing her, making her angry, and staying by her side became his greatest wish in life. Little did they know that before their sweet love story could even begin, they would discover something…