Infinite Upgrades to My Card-Throwing Skill

Flying Cards LV.1: Range of 10 meters. Flying Cards LV.2: Range of 20 meters, sharp enough to slice leafy vegetables. Flying Cards LV.3: Range of 40 meters, sharp enough to slice cucumbers. Flying Cards LV.4: Range of 100 meters, sharp enough to slice watermelons. Flying Cards LV.5: Range of 200 meters, sharp enough to slice bricks. Flying Cards LV.6: Range of 400 meters, sharp enough to slice pig iron. Flying Cards LV.7: Range of 800 meters, sharp enough to slice steel rebar. Flying Cards LV.8: Range of 1,600 meters, can pierce walls. Flying Cards LV.9: Range of 3,200 meters, sharp enough to cut through cars. Flying Cards LV.10: Range of 6,400 meters, sharp enough to cut through trucks. Flying Cards LV.20: Range?? Can they cut through fighter jets? Flying Cards LV.30: Range?? Can they cut through aircraft carriers? Space battleships? Flying Cards LV.60: Range?? Can they cut the world in half? 【This is a modern urban story with a solo protagonist who cultivates a unique path. Come on in!】