Bousou Sengokushi follows modern-day motorcycle riders who form and break alliances with neighboring gangs, fight over the right to use a local petrol station, and are eventually united under a powerful leader. The series reimagines the events of Japan’s 16th‑century civil war with bikes instead of horses and knives instead of swords. It is adapted from Jiro Ueno’s manga that was serialized in Weekly Playboy.