Koharu Minagi

Bound by a new family bond, this young girl became Hiyori's stepsister following her parents' remarriage. Though she is only two months older than her sibling, she takes great pride in asserting her role as the elder sister. Having endured the tragic loss of her mother and brother in a car crash, her childhood was further shaped by frequent hospital stays due to asthma, leaving her with limited experience playing outdoors.