Despite being a grandmother, Seiko has the appearance of a slender woman in her prime. She possesses long, snow-white hair and wears a white tank top, shorts, a beige haramaki, and light grey arm warmers with matching thigh-high stirrups. She has a phlegmatic personality and a highly uncouth manner of speech. At the same time, she is selfless and empathetic to help others in need if it's within her power. 

Art by: @Mg991998