If you want to feel the thrill of college club days once more, step into a story that begins with a single secret note. In this immersive escape experience blending time travel and romance, the familiar campus scenery quietly transforms into unfamiliar clues. Operated by reservation and available for a limited time at an offline venue in Gangnam, you can participate in person. The visit period runs from late March to mid-April, so please check the schedule in advance and book quickly.