Nico-Nico Ni

A young girl in a yellow jacket makes a peace sign with both hands and smiles, followed by a girl in a white shirt making the same gesture, then a girl in a school uniform with pigtails doing the same, all accompanied by the text "Nico-nico Smile!". The sequence ends with a girl in a dark outfit turning to face a small dog in a dimly lit hallway, followed by a close-up of the dog's face.