The Darwin Incident manga volume 1 features story and art by Shun Umezawa.

Created in a biological science lab, Charlie is a half human, half chimpanzee hybrid known as a "Humanzee." 

Raised by his adoptive human parents, Charlie is now 15 and starting high school. There he meets Lucy, a clever loner who becomes his first-ever friend.

But his "normal" life is shattered when the animal rights extremists who freed his mother from the lab fifteen years ago reemerge as terrorists bent on kidnapping Charlie at all costs.

The Darwin Incident manga volume 2 features story and art by Shun Umezawa.

Charlie—half human, half chimpanzee—has just entered high school. His parents simply want a normal life for him, but the terrorist group known as the Animal Liberation Alliance has other ideas. In spite of everything, Charlie's new friend Lucy is doing her best to help him fit in—until every parent's worst nightmare strikes Shrews High...!

The Darwin Incident manga volume 3 features story and art by Shun Umezawa.

Everyone's eyes are on half-human, half-chimpanzee Charlie after the Animal Liberation Alliance orchestrates a mass shooting at his high school. The FBI wants to bring him in, the locals want him out—but what are the ALA's real intentions? Why are they so fixated on Charlie? And what can they tell him about the mystery of his birth?

The Darwin Incident manga volume 4 features story and art by Shun Umezawa.

Half-human, half-chimpanzee Charlie is at the center of a maelstrom: the ALA want to turn him into a terrorist figurehead, the FBI want to bring him in, and the people of Shrews want nothing to do with him… Amid the chaos, Charlie has lost his family. But who took them from him? The answer could change the world—!!