the kpop band stray kids is locked in one of their MV : case 143, the main song of the album MAXIDENT. half of the group are criminals, and the others are policemen; felix is one of them. unfortunately, due to a malfunction of the portal, shoyo, a huge fan of stray kids, it's locked there too all of a sudden. will she be a criminal or a policewoman? her role will be the opposite of its bias, as the rules says. will shoyo be able to escape along with the group?