The official Twitter account for Manta Aisora's Haiyore! Nyaruko-san "high-tension, chaotic comedy" light novels has revealed on Wednesday that a television anime adaptation has been green-lit. The story centers around Nyarlathotep, a formless Cthulhu deity who can take on the shape of anyone it wishes, but particularly the shape of a seemingly ordinary silver-haired girl. Mahiro Yasaka is a normal high school student who is chased by aliens one night, until "Nyaruko" saves him.

Softbank Creative's GA Bunko imprint began publishing the light novel series in Japan in April of 2009. Koin (Kanokon) illustrates the light novel volumes. DLE, the studio behind the Eagle Talon Flash anime series, already adapted the light novels into a Flash anime called Haiyoru! Nyaru-Ani. That earlier anime shipped in a special box with the fourth light novel volume in March, although selected episodes were released earlier.

More details about the new television anime will provided on the wraparound jacket band on the fifth light novel volume, which will ship in August.