The deities of the Chutlhu mythos who live in ordinary high school student Yasaka Mahiro's home - Nyarko the Nyarlathotepian, Kuuko the Cthughan, and Hasuta the Hasturian - are enjoying the wonders of Earth entertainment yet again. They drag Mahiro along as they indulge in video games, shopping, cosplay, and more...
Y-You're like an older 
brother, Mahiro-kun,
Ma-mahiro-kun es como un hermano para mí,
V-Você é como o meu irmão, Mahiro-kun,