Ibuki Arakuni is a high school student who is far from a model student. He has a childhood friend, Akabane Honeko, who attends the same high school as Ibuki Arakuni.

Amemiya is an unpopular Youtuber who specializes in the occult. One day, his manager brings him a floor plan with an inscrutable point. With the help of Kurihara and Yuzuki,…