Demon Slayer

A glowing white line appears on a dark surface, then a character's hands come together in a prayer-like gesture. A hand grips a sword hilt, followed by a scene of a character lying on the floor while another figure holds a long, red, whip-like object. The sequence ends with a close-up of a character with glowing blue eyes and animal-like features. The setting transitions from a dark, abstract space to a dimly lit room with red lighting.