"Sister Xinyi, please don't cut my hair..." "Sister Xinyi, please don't throw away my doll..." "Sister Xinyi, please..." Overnight, she changed from a little fairy who did not eat the fireworks of the world to an ordinary person. By chance, she discovered that her sister Xinyi was the culprit who caused their family to fall into the mortal world. So, she quietly took on the heavy responsibility and was forced to grow up. In this cat-and-mouse game, intrigues and secret struggles made her life different from that of her peers. However, she found her own light in the darkness. For her revenge plan, she sacrificed her time, energy and good friends who stayed with her day and night. She succeeded and grew up.