Atsushi Arai

Set around Ide, Kyoto Prefecture, Japan, Sasaoka Yuri and Ogawa Yosuke have been friends since they were children. They are crazed about bicycling. The two grow up through interacting with people in town. (imdb)

Based on rerulili's Vocaloid work "Noushou Sakuretsu Girl". Students are forced to participate in deadly competitions where only one victor will remain. (imdb)

When friends graduate from junior high school and are enrolled in high school Koichi and Yakko join a motorcycle gang. They make new friends, have fights, and flirt with girls. Yakko, however, is not having an easy time of it. Koichi stands up for his friend and joins the yakuza, which brings its own problems with it.