Set three years after the events of Stick of Truth, new kid Seth "Douchebag" Bobinski becomes involved in an epic roleplay involving two rival superhero factions vying to create their own superhero media franchises. But this being South Park, things soon take a crazy turn...

A New Kid moves to the eponymous town of South Park, and becomes involved in an epic role-play fantasy war involving humans, wizards, and elves, who are fighting for control of the all-powerful Stick of Truth. Their game quickly escalates out of control, bringing them into conflict with aliens, Nazi zombies, and gnomes, threatening the entire town with destruction.

Taking place during the events of Re;Birth 2, Vert's little brother and CPU Candidate of Leanbox, Excel had been missing her sister for over 3 years now, ever since she was imprisoned at the Gamindustri Graveyard. Now that he heard that his fellow CPU Candidate, Nepgear is on a mission to save her, he wants to do his part in assisting her in her crusade.