it's joke

A group of four female students in school uniforms stand in a hallway, with the blonde girl in the center gesturing and speaking, then the camera cuts to a close-up of her smiling as she adjusts her green scarf, followed by a shot of the three other girls looking at a phone together with expressions of surprise and concern, and finally a close-up of a man with long white hair and a red shirt, who is smiling and then brings his hand to his face in a thoughtful gesture.