One punch man

A young man in a dark uniform walks down a metallic staircase inside a futuristic facility, stops, and turns to face the camera with a surprised expression before the scene cuts to a title card. The main subject is the young man, who walks down stairs, turns to face the camera, and displays a surprised expression, followed by a transition to a title card reading "ONE PUNCH MAN" against a dark background. The setting is a high-tech interior with angular architecture and a large mechanical structure.