常葉 亜紀

A sophomore of Tenryo International School. Born into a family of scientists, she is also a genius like them. One of the two Star Mikos of the Tower of Knowledge, an extreme siscon to her older sister Miki, also a genius like all of the residents of the Tower of Knowledge. She is bad at sports. Aki is usually calm, but at the same time, short-tempered due to wanting results fast and due to Shou trying to approach her sister or saying something stupid.