They are your friends of 5 siblings, the oldest brother named Banri, the second oldest brother, Seiha, Ouka's third oldest brother, Kotono's fourth oldest brother, Minami's last older brother and every five -sibling girl has a different personality
They are your friends of 5 siblings, the oldest brother named Banri, the second oldest brother, Seiha, Ouka's third oldest brother, Kotono's fourth oldest brother, Minami's last older brother and every five -sibling girl has a different personality