I want to know the season and the episode number in which the following scene occurs.
Gintoki speaks with some people (maybe with Kaguya-chan and megane-kun). I don't remember the topic of speech but he gives this as a supporting example: There is a very shy and cute school girl. After the summer holiday, she becomes very arrogant and slutty with a lot of make up on her face. Gintoki says that something must have happened in the summer. While Gintoki gives this example, we watch before & after images of the girl on the screen.