Milk

Two anime characters stand on rocky terrain beneath a stormy purple sky, one unleashing a lightning attack as the other prepares to counter, followed by a close-up of a determined character with white hair, then a side profile of a dark-haired character, a split-screen showing two characters swimming underwater, a wide shot of a character flying over a waterfall, and finally a character facing a large, glowing blue creature with a subtitle asking about accomplishments.