Arisu Sakayanagi

A beautiful female student who divides leadership in the class with Katsuragi. Her father is the chairman of the Advanced Nurturing High School. She possesses such high intelligence that she calls herself a "genius," but due to a congenital heart condition, she is prohibited by doctors from any physical activity and is permitted by the school to use a cane when walking. Outwardly, she is graceful and uses polite language with everyone, but her true nature is quite ruthless, and unlike the conservative Katsuragi, she has a very high pride and aggressive mindset.