Well, what on earth is this?

A woman in a blue hooded coat stands in a snowy night scene as snow falls around her. The scene cuts to a blonde girl in a school uniform holding a chocolate, then to a red-haired girl in a classroom, followed by the blonde girl and a boy sitting back-to-back in a fiery landscape, a girl with teal hair playing a guitar, and finally two students, a girl with purple hair and a boy, sitting on a bench looking distressed.