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...
You better have erased 
all of their memories.
Ahora habrá que borrar los 
recuerdos de todo el mundo.
Espero que tenham apagado a memória delas.