In 2017, Tokyo, Japan was bustling with preparations for the highly anticipated 2020 Olympic Games. Major renovations and updates were in progress for the city's Shutoko metropolitan highway system, and new facilities were rapidly being constructed. The Hyuga Corporation, known for their innovative artificial muscle fibers, enjoyed a surge in profits from their popular line of muscle supplements. However, the Hyuga Corp. had a top-secret project brewing behind their locked doors - a powered suit designed to bestow professional athlete abilities to the average person. This was a bold attempt by the company to dominate the industry and leave competitors behind. Dan Amo, a regular salaryman responsible for the General Affairs department at Hyuga, was also an avid motorcyclist living a double life. One night, while speeding down Route 246, he spotted a group of mysterious black-suited riders, piquing his curiosity. This led him to Makina Mikage, an investigative journalist searching for a juicy scoop. Unexpectedly, their paths crossed with Kotaro Hyuga, the heir to the presidency of the company. The lives of these three bikers became intertwined as their stories unfolded, leading towards an unavoidable conclusion.