Female, Xia Ao's younger sister. She studies bioengineering at university. She is very smart with a 'genius syndrome' - picks things up effortlessly but loses motivation quickly. She has short attention span and gets distracted easily. She is muscular and works out regularly. She lost her glasses a long time ago. She took on the critical task of guarding the school's main gate due to her leadership abilities. She is lively, excitable, and speaks with a sharp tongue like her brother.