Amnesia

A blonde anime character with a headband stands in a blurred, warm-lit environment, then the scene cuts to a close-up of a character's legs and skirt as they run across a bright green field, followed by a robotic hand touching a sealed letter on a wooden table, then a close-up of a character with white hair and blue eyes looking upward, then a fiery explosion, and finally a character in a white dress running through falling snow.