Actual H.P. Lovecraft's alien god of chaos from Cthulhu Mythos appears to a high school boy in the form of a whimsical girl Nyaruko claiming that it's there to protect him from other alien godlike races who want to abduct him.
What genre is Nyaruko: Crawling with Love?
Action, Animated, Comedy, Fantasy, Romance, Romantic Comedy, and Sci-Fi