Kokoa Shuzen

Kokoa Shuzen is a first-year student at Yokai Academy and the orange-haired half-sister of Moka Akashiya. While she lacks Moka's sealed strength, she fights by using her transforming pet bat, Kou, as a weapon. Kokoa often clashes with Moka in an attempt to force the emergence of "Inner Moka." Despite her aggressive nature and a lingering fear of her eldest sister, Kalua, she eventually learns to accept her complicated family ties.