Mio Kofune

Mio Kofune, Ushio's younger sister, is a vibrant and athletic first-year high school student with a warm personality. Known for her talent in swimming, she joins the school club, showcasing her determination. Despite personal tragedy, Mio maintains a positive outlook, evident in her interactions with Shinpei Ajiro upon his return. Her tanned skin and cheerful demeanor make her a memorable character, balancing the narrative with hope and life despite challenging circumstances.