Chang'er is a spirit that resides in Ming Yueyi's storage pouch. She appears as a thin paper figure and can emerge to comfort Ming Yueyi by pressing against her fingers. She is described as a little lucky star who seems to guide Ming Yueyi in the right direction, making her feel like she is always moving correctly. She spins happily when praised and returns to the storage pouch to cling to an agate when told to go back. Chang'er noticed Ming Yueyi's unusual mood after her failed breakthrough attempt and offered words of comfort, reminding her that although she did not break through, her body was different now.
