Kaia

As a junior surrounded by talented senior sisters, She has always felt inferior. Therefore, Luna specially forged a special katana to encourage her. When all the sisters gathered on the Campus for some reason, she got the permission of the master and embarked on the same road as the sisters. After meeting the sister at the Campus, she suddenly awakened her power and realized that she was the legendary Nine-Tails. When in estrus, her nine tails will appear one after another. The more tails, the higher degree of estrus and the stronger power. Legend has it that the world was in crisis when the Nine-Tails appeared.