"X"

A long-haired anime girl with a gentle smile appears in a black and white close-up, followed by a transition to a dark, blurry scene with vertical light streaks, then a close-up of a short-haired girl with a butterfly on her shoulder, next a shot of hands reaching up from dark water, then a black screen, and finally a close-up of a man with dark hair and a wide, unsettling grin against a red background.