been gone a long time

A character in a white and black outfit raises a glowing sword above their head in a fiery, red-lit environment. The scene cuts to a massive explosion viewed from space, followed by a group of people in dark clothing running in a dusty, outdoor area. The sequence continues with a woman in a white top and black shorts sitting on a pink couch in a pink room, then shifts to a group of women in school uniforms seen from behind, bending forward in a classroom setting.