Parasyte 6 - Hitoshi Iwaaki

Kodansha - <p>A horrific science fiction story complete with sweet romance, imaginatively grotesque images, and a spine-tingling evaluation of human nature.ENEMY MINEShinichi has been hiding his true nature from the world- His body has been colonized by an alien being, and now he's half-human, half-alien. The other alien invaders, led by the cruel and beautiful Tamura, have discovered his secret. Shinichi is a threat to their plan to destroy the human race-a threat that these ruthless creatures will no longer ignore...</p>