Ontama!

is a Japanese light novel series written by Hisui Hisui, with illustrations by Chiri. The series began publication on May 10, 2013 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
A boy named Kagaribi Spirit moves into a high school in a small village.

To tell the truth, he was a source of possession-a person who has the blood of a youkai ... The spirit that came from the world where youkai live, "Tenku Jingu," will live in the human world in an attempt to "can a youkai live a human-like life?" With the support of funny youkai friends, I enjoy the human-like youth with the open-minded girl, Mikuchi Nanao.

A hot-blooded story of a boy trying to become a bridge between youkai and humans!