Parasyte. Vol. 1

"An ordinary teenage boy named Shinichi Izumilives with his parents in a quiet neighborhood until alien parasites invade. They are worm-like creatures that enter human 'hosts' through their ears or noses, and take over their brains. A Parasite attempts to crawl into Shinichi's ear and take over his brain while he sleeps, but is stopped by his headphones and accidentally burrows into one of his hands instead. With separate intellects, he and his parasite, Migi, fight the invasion of the town."
"A plague of alien parasites has invaded Earth, taken over human hosts and begun feasting on humanity."
"Izumi Shi'ichi is an ordinary high school boy. One day, he finds his right arm being "possessed" by a strange creature. This was the beginning of nightmarish battle between evil creatures and human beings."
"A plague of alien parasites has invaded Earth, taken over human hosts and begun feasting on humanity. Most of the hosts are oblivious to their captors, but high schooler Shinichi is fighting to control his own body against an alien parasite and wondering how he can warn humanity before it is too late."@en
"A plague of alien parasites has invaded Earth, taken over human hosts and begun feasting on humanity. Most of the hosts are oblivious to their captors, but high schooler Shinichi is fighting to control his own body against an alien parasite and wondering how he can warn humanity before it is too late."