Life is never dull for Nyaruko and Mahiro. Whether it's seeing which is preferred by a pet, to talking about RPGs, or even designing the cover for a body pillow, fun is sure to be had by the duo. And when Cthuko enters the picture, Mahiro has his hands full with teaching her to cook, and even learning about her crush on Nyaruko!
There's a new teacher in town – Spelunker! This unusual man is anything but a typical instructor, giving speeches about traffic safety to the students, reacting strangely to a humidifier, and enjoying lunch – albeit with ample condiment mishaps. With such a bizarre new role model to learn from, Spelunker's students will never be the same!