At 16 years old

A blonde anime girl with pigtails and a white outfit appears in a close-up, followed by a shot of a character with golden hair and horns in a battle scene, then a dark-haired girl with animal ears and a tail in a black and white outfit, a red-haired girl falling through a red background with white feathers, a figure in a blue-lit environment with a glowing pink object, and finally a dark-haired girl in a blue-lit scene holding a glowing object.