Saito Takashi

A man trapped in an endless sterile subway passageway sets out to find Exit 8. The rules of his quest are simple: do not overlook anything out of the ordinary. If you discover an anomaly, turn back immediately. If you don’t, carry on. Then leave from Exit 8. But even a single oversight will send him back to the beginning. Will he ever reach his goal and escape this infinite corridor?

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, he begins to look into the plan and reveal the mystery behind.