"Have you heard of the urban legend called the double?" If you meet someone that looks exactly like you, one of you will be entirely replaced by the other. Your "double" will inherit all of your memories and live your life without anyone else noticing... But the world is so wide—how do you know that you're not actually someone else's double? Are you really... you? A few years after the events in the first Urban Legend Hunters, the disappearance of a popular internet show host and influencer Chris became a hot topic on the internet. You, an outsider clueless about the incident, meet Rain, Shou, and Tangtang, who claim to be members of Chris' channel, on a messaging app. They suspect that Chris' disappearance has to do with the urban legend of the "double", as well as the Urban Legend Hunters community. They ask you to join in their search for Chris, and the more you investigate and the more clues you gather, the closer you get to seeing the full picture of what really happened...