Parasyte Vol. 1 by Hitoshi Iwaaki is a gripping sci-fi horror manga that delves into the unsettling invasion of Earth by parasitic aliens. These creatures attach themselves to human hosts, taking control of their bodies and minds. The story centers around Shinichi Izumi, a high school student whose life takes a terrifying turn when one of these parasites, Migi, fails to take over his brain and instead inhabits his right hand.

Now forced to coexist with Migi, Shinichi struggles to maintain his humanity while dealing with the cold, logical parasite within him. As he encounters other parasitic creatures who have fully taken over their human hosts, Shinichi is thrust into deadly confrontations where survival is uncertain.

Blending intense action, body horror, and philosophical questions about identity and morality, Parasyte Vol. 1 sets the stage for a thrilling and thought-provoking battle between humans and the parasitic invaders threatening their existence.