Nyaruko is a fictional character who appears as the main protagonist and title character of the light novel series Nyaruko: Crawling with Love, created by Manta Aisora and Koin. Based on the Nyarlathotep deity first seen in the Cthulhu Mythos described in the books by H. P. Lovecraft, Nyaruko is member of an alien race that served as inspiration for the character in-universe. Taking on the physical look of a silver-haired girl, she is sent to Earth to protect the human Mahiro Yasaka, with whom she falls deeply in love at first sight.