Dark Butler

A young man in a black suit stands in a golden, ornate room, extending his arms as glowing, crescent-shaped blades form around his hands, then the scene cuts to a close-up of his hand as it shatters a surface, followed by a dark screen, then a figure in a long coat holding a glowing staff in a dimly lit, gothic setting, and finally a profile shot of the man looking out over a city at night with glowing particles floating in the air.