Every single day, Chongsuk is killed in whatever way his creator, Baesoo, pleases. How is it possible to die multiple deaths? Well, with the technology of Wonderland Black Cage, anyone can live out their wildest revenge fantasies! Humiliated by your crush? Let your fury fly free in the WBC app! But all good things come at a price. The more Baesoo plays, the more Chongsuk adapts. And with the app’s AI secretly guiding Chongsuk’s every move, who’s controlling who?