Those who are troubled by strange phenomenon go to the forty-fourth room of the fourth floor of the fourth hall of Higashisei University’s Literature Department. There they will find Zettaijou Araya, a tall, pale, and handsome collector of all materials related to youkai. Perpetually clad in a black haori, he consults people suffering from supernatural problems. The season is spring, and the university campus is crowded with new students. One day, a freshman by the name of Yunoyama Ayane decides to pay a visit to a certain room…

Izumi, who is all alone in the world and can see supernatural phenomena, suddenly marries Haion, the last onmyoji protecting the imperial capital! Though unsociable during their married life, Haion recognizes Izumi's unique power of sight and is kind enough to stand by her. As a result, the distance between the two gradually closes... (Source: Kadokawa, translated)