Kaidan is a bookstore inspired by Japanese horror stories and urban legends, featuring hand-drawn illustrations throughout the branding experience. Kaidan has elements incorporated from a verbal storytelling game that was popular during the Edo Period in Japan, the “hyakumonogatari kaidankai.” In this game, the people of that time period lit 100 lamps and told stories late at night. After each story they told, they would blow out one of the lit lamps, and the room would gradually grow darker.