after after after

In a school hallway, a girl with red pigtails and a blue uniform stands facing a girl with short blue hair, who remains seated and expressionless; the red-haired girl begins by speaking with a stern expression, then opens her mouth wide in a yell, closes her eyes and leans forward in frustration, and finally returns to an open-mouthed yell with her eyes closed, all while the blue-haired girl maintains her calm, unchanging gaze.