Since I was little, I was fast and got into college on a track scholarship. I was even looked up to within the team. Things were going smoothly with Suzune, a girl from the same track team, whom I recently started dating... However, it seems my success irked my senior, who started tormenting me. The relentless abuse led me to accept a devilish deal from him, and as a result, I ended up losing Suzune, the most important person to me...