He Patted My Feet and Said, "Her Royal Highness the Queen"

This is a sibling relationship that started with a lie. The heroine is eight years older than the hero. It was originally a play-by-play where each got what they wanted, but as they got along day after day, their hearts fell involuntarily. In this relationship that was not favored by the world, she went from being confused to being stuck in a fog, and finally broke through the shackles, broke away from the shackles, learned to reconcile with herself in love, and completed a grand self-transformation. It turns out that the best love is never attachment, but two independent souls living a more complete version of themselves under the illumination of each other.