Developed for the purpose of competing in the 24 Hours of Le Mans endurance race, The Audi R8 is a sports prototype that has won the Le Mans overall championship five times. The R8 has continued to win in the grueling Le Mans race while inheriting the basic design of the car's body, engine, and other components, It is one of the most successful cars in the history of the 24 Hours of Le Mans endurance race, which has continued since 1923. And , Audi, the champion of endurance racing in the 21st century, is proud to announce the release of the road car in 2006, bearing the name of the glorious R8. The R8 is a sports car with a midship layout released in 2006. Although in appearance and mechanism, the R8 is completely different from the Le Mans-winning R8, the R8 is a production car, However, both cars were developed based on the same design concept, The R8 road car and the Le Mans-winning R8 share the same design philosophy: a driving position that is less fatiguing, a comfortable ride, and easy-to-maneuver characteristics, The R8 road car was developed based on the same philosophy as the R8 racing prototype.

In the year '2046, a world where much of life is conducted on a virtual network through the use of portable terminals called neurolinkers. However, no matter how advanced the times become, "bullied children" will not disappear・・・・・・. Haruyuki was one of those at the bottom of the school caste. He was spending his days in a dark and gloomy corner of the local Internet, just playing squash games, One day, he was approached by Kuroyukihime, the most famous girl in the school. She said, "Wouldn't you like to accelerate your life even further, boy?" She entrusts him with the mysterious "Brain Burst" program and teaches him the secrets of the "Accelerated World", and Haruyuki decides to fight as Kuroyukihime's "knight" ・・・・・・.

Vice-president of Umesato Junior High School. She is called "Kuroyukihime" (Snow Black Princess) because of her beautiful appearance. Although she has excellent grades, she is actually a klutz. She is the one who led Haruyuki, the main character, into the struggle in the virtual world.