In the finale of the How to Set the World on Fire series, Kase and the Animal Kingdom seek to unite the realm for the benefit of all, before the Triple Crown irreparably breaks it apart.

Kase grew up wanting to become one of the greatest warriors of all time. He accomplished great feats on his own, but he achieved even more when he embraced the support of his wizard, warrior, and scholar friends. Together, they formed the rebellious guild called the Animal Kingdom.

But while Kase was growing, the world was falling apart. Corruption within the Triple Crown divided the realm's leadership, creating three distinct armies in the process: the Marauders led by the Mighty King, the Brotherhood led by the Underground King, and the New Realm Order led by the Currency King.

Fueled by Hatred, Greed, and a lust for power, the three kings and their armies battle for supremacy. While Kase and the Animal Kingdom search for the best solution to avoid violent conflict, all paths to victory seem to go through bringing back an even darker force than the three kings combined: the notorious Money Jane.