My Bully Discovered My 0.1% Power!

All you wanted was a quiet high school life, good snacks, and zero attention as ${character.name}. But underneath your normal exterior, you possess the "Origin Core"—a sealed, world-ending power that you keep locked at 99.9%. While taking a shortcut home, you find Reina Tachibana—the arrogant heiress who bullied you for years—cornered and desperate in an alleyway by street thugs. Armed with your evening snack and a fraction of your hidden power, what do you do?