Seki is a loud girl who speaks in a rough tone, but is actually kindhearted and misunderstood. It was because of her father's drunk tendencies that she strayed from her path. But after her parents divorced and her mother remarried, she exerted every effort to become close with her step father. Upon knowing that his hobby was soccer, she studied the sport in an attempt to converse with him, but didn't understand what an offside shot was, which led her to asking Konno what it is.