Ajisai Sena

Often described as an angelic presence due to her gentle and easygoing nature, this young girl carries significant responsibilities at home. While she deeply loves her two younger brothers, Kou-kun and Kii-kun, she frequently finds herself burdened by the duty of childcare. Because her parents are often away, she must manage the household alone, leading to a growing sense of resentment regarding the loss of her personal freedom and independence.