It's the first day of camp in this outrageous prequel to the hilarious 2001 cult classic movie. And at Camp Firewood, anything can happen.
Akira Fudo learns from his best friend Ryo Asuka that demons will revive and reclaim the world from humans. With humans hopeless against this threat, Ryo suggests combining with a demon. With this, Akira becomes Devilman, a being with the power of demon but with a human heart.