When online writer Yan Yiyi was looking for inspiration for her creation, she unexpectedly met Qin Yu, a handsome man in ancient costume, who "traveled" from a book and claimed to be looking for his beloved concubine Yan Yiyi. The appearance of the virtual character Qin Yu disrupted the order of the real world, and Yan Yiyi, as the author, faced severe punishment. In order to protect herself and maintain the balance between the world in the book and the real world, Yan Yiyi and Qin Yu started a 100-day "fancy breakup battle".