Mari Yoshimori holds the U.S. record for the fastest 400 meter time in track and field. Shortly before Olympic trials, she learns that she has a potentially career-threatening torn hamstring. This news crushes her soul. Not listening to her doctor or mother’s advice, Mari keeps training, and pushes herself too far. So far that the powers of nature thrust her into the depths of a psychological purgatory. While there, she meets her spiritual sidekick, Bettari. Petite, cute and mysterious, she communicates through a handwritten sign as she playfully lures Mari deeper into her domain. Only Mari can decide whether Bettari intends to guide or destroy.