A princess falls from grace and grows up to lead a rebellion once she learns the truth about the ignorance of racism in her land.
A gambling prodigy comes to an elite school run by games and turns the order upside down.
If a single Kiznaiver experiences pain, either emotional or physical, the system distributes it among the other Kiznaivers. Sure, why not.
A vampire meets a high school girl, and weird things happen.