"There's something I want to tell you." One day, Ryo, a high school student, happened to run into Yuta Sawada, a classmate from his elementary school days. He doesn't seem to remember Ryo, but Ryo can't forget Sawada, who was always alone and out of the class at that time. Ryo begins to meet Sawada on the pretext of asking him to help him with his studies, but...?

The comic adaptation of the hugely popular social game is now available in digital serialization! A small, peaceful village deep in the mountains is suddenly attacked by a ferocious monster. A boy named Nagi (and his Shikigami Shibataro), who has been attached to the monster since childhood for some reason, visits Abe no Seimei, a rare genius onmyoji who lives in Kyoto, with news of the incident. However, Nagi has a secret that even he doesn't know about...?! The comic adaptation of the hugely popular social game! The battle to protect Kyoto begins now, together with Abe no Seimei's Shikigami, Tenkuu, one of the Twelve Heavenly Generals.