Guardian Dog

In a life of ordinary routine, Gengo Kurosaka's world is turned upside down when a runaway alien, known as "Six-eyes," takes refuge in his body. With this sudden and unwelcome roommate, Gengo becomes the target of Ishtar, a beautiful alien tasked with ensuring that Earth remains off-limits as a hunting ground for her kind. As a result, Gengo must learn to coexist with his unlikely parasite in order to survive, setting in motion a complex and intriguing struggle to maintain his very existence.