Magic Insulator? I Rely on the Mcdonald's System to Dominate

I, the sole heir to McDonald's, was killed in a car accident and traveled to another world. When I woke up, I found that my whole family had been wiped out. So what if there is no elemental affinity? All fast food is my strongest secret! The Big Mac punches through the armor, the fries cage blocks the whole place, the ice cream freezes strong enemies, and the dessert milk drink heals injuries. The hamburger hits the knight, the coke hits the mage, the chicken leg hits the demon king, and the French fries fight against the wolves.