My Punches Have a Gacha Problem

Guntur Perkasa is a simple guy with a simple dream: to pass the notoriously difficult entrance exam for the Puncak Langit Academy. His problem? He’s hopelessly average. That is, until an ordinary morning goes spectacularly wrong and a bizarre System screen appears, promising a 'Critical Hit Multiplier' on every punch he throws. Suddenly, his training jabs are blowing craters in the dojo wall. His sparring sessions accidentally level forests. Guntur, ever the optimist, thinks he's just getting really, really lucky. He has no idea that every 'critical hit' is a misfire from a cosmic terraforming device, and the 'System' is its increasingly frantic automated help desk trying to prevent him from accidentally punching the planet in half. As he stumbles towards his exam, attracting the attention of a brilliant but exasperated rival and a pint-sized beast who eats destruction for breakfast, Guntur must somehow learn to control a power that can flatten mountains when all he wants to do is pass a simple test. Can he get his power under control before he accidentally K.O.s the entire continent?