Haiyore Nyaruko-san

Haiyore! Nyaruko-san is a Japanese light novel series written by Manta Aisora and illustrated by Koin. It was later adapted into an anime series. The story revolves around Mahiro Yasaka, a high school student who is pursued by a mysterious girl named Nyaruko, who turns out to be a Cthulhu-like deity. The series combines elements of horror, comedy, and romance. It explores themes of love, friendship, and the supernatural. The series is known for its parody of various anime and pop culture references.