A female scriptwriter accidentally travels into her own script in an effort to save her male protagonist. In this unfamiliar world, she encounters various characters, including a shy prince, a sinister rival in love, scheming contenders for the throne, a playful emperor who enjoys matchmaking, a kind-hearted empress, a childhood friend-turn-cousin, and an open-minded mother. The scriptwriter not only has to deal with these complicated personal relationships, but also confront various dangers and challenges. She must find a way to alter the ending of the script to save the one she loves. During this process, she gradually uncovers the secrets and hidden plots behind this world.