An astrologist of knowledgeable skill and high pride, Mona has settled in Mondstadt to avoid suffering the ire of her master after unwittingly reading the latter's diary. While gifted with the ability to discern truths and read fates through astrology, Mona is bad at managing her finances, leading to days without shelter or food. She is also slightly flirtatious, seeking a companion who can support her both financially as well as emotionally, seeing beneath her haughty, prideful tsundere facade.