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This subject is written on a topic in the real world and reflects factual information. This subject contains information from the Expanded Cthulhu Mythos, and not based on H.P. Lovecraft's works directly. Haiyore! Nyaruko-san (Nyaruko: Crawling with Love or Nyaruko-san: Another Crawling Chaos, literally Crawl Up! Miss Nyaruko) is a series of light novels, manga, and anime published in Japan that incorporates elements from the Cthulhu Mythos. The novels, written by Manta Aisora and illustrated by Koin, were published in 12 volumes by Soft Bank Creative under its GA Bunko imprint between April 2009 and March 2014.

A flash-animated straight-to-video adaptation titled Haiyoru! Nyaruani was released from October 2009 to March 2010, with nine episodes mostly one to two minutes long. (The last episode was six minutes.) Another series, Haiyoru! Nyaruani: Remember My Mr. Lovecraft, was released from December 2010 to February 2011, with 12 episodes of about four minutes each. An animated TV series was released in two seasons in 2012 and 2013, with 12 half-hour episodes per season.

Two different manga series were released starting in 2011.

Mythos Connections[]

  • The premise involves a human boy named Mahiro becoming roommates with several extraterrestrial entities from the Cthulhu Mythos, including Nyarlathotep (Nyaruko), Cthugha (Kuuko) and Hastur (Hasuta). Additionally, Nyaruko has a pet Shantak.
  • Hasuta's dad is the owner of the Carcosa Computer Entertainment corporation.
  • Luhy Distone is a Cthulhi, who was a former employee at the Cthulhu Corp. gaming and entertainment company.
  • R'lyeh is a theme park that has intergalactic contraband and human trafficking. Nodens is one of the space smugglers there, who uses Night-gaunts to kidnap his victims.
  • Dagon is the R'lyeh express water taxi.
  • Tamao Kurei (a human friend of Nyaruko) gets possessed by a Yithian named Isuka.
  • Ghatanothoa appears in episode 11 and 12 of the TV series, taking the form of a little girl named Ghutatan. She is accompanied by Roy Fogger, who is later revealed to be an evil Lloigor that seeks to steal all of Earth's eroge games. A gang of Shoggoths also try to attack Ghutatan.
  • Ut'Ulls-Hr'Her appears as a yaoi fangirl, under the name Tsuruko.
  • Zhar and Lloigor run a sketchy environmentalist group that receives their funds by creating new endangered species to protect.
  • Boss Mi-Go, leader of the Mi-Go race, appears as a one-shot antagonist.
  • Another member of Kuuko's species is named Clark Ashton Smith.
  • Members of the Space Defense Agency's Dreamlands Management Division include Bast and N'tse-Kaambl.
  • Atoko Shirogane, a character based on Atlach-Nacha, is introduced later in the series.


Main article: Haiyore! Nyaruko-san/Gallery