Motoko Kawai, also called Moko, is a 21-year-old Japanese citizen. She works as a Shoubaionna (businesswoman/saleswoman). Physically, she stands 1.51 meters tall with measurements of 88-58-87, black hair, and violet eyes.

Her name matches that of the real-life spouse of professional wrestler Shohei "Giant" Baba. The couple married in Hawaii in 1971, keeping their union private for nearly ten years before it became public knowledge. Following Giant Baba's death in 1999, Motoko Kawai became his widow.