Hotel Mystays Premier Akasaka is tied to persistent modern ghost rumours dating back to when the property operated as Akasaka Weekly Mansion, during which guests allegedly reported repeated paranormal disturbances. The most distinctive legend involves sightings of a Noppera-bō—a faceless yokai described as appearing like an ordinary person before its features vanish into a smooth, blank face and the figure dissolves when approached. Additional guest accounts mention white mist emerging from air vents, electrical appliances switching on and off, ghostly hands in rooms, and the sensation of an unseen presence during sleep, with some reports claiming they woke feeling watched or not alone. One extreme rumour describes a guest being dragged across the room by an unseen force.