Dazai Osamu

A red-haired anime character with a wide, intense eye stares forward, then turns and runs through a vibrant, pink-hued environment, followed by a shot of a dark-haired character in a school uniform reacting with surprise and excitement. The scene shifts from a close-up of the red-haired character's face to a wide shot of two figures on the ground under a bridge, then to the red-haired character running, and finally to the dark-haired character in a room with wooden walls, who looks up with a shocked expression.