Good day for watching porn (2016)

Tenth graders Oh Dong-seok, Lee Dae-bal and Ryu Ki-seong live in the same neighborhood and go to the same school. They are enjoying their summer vacation. They attend a discussion academy to apply for university and slowly, they start getting interested in women. They open up to porn. They always talk about it and share new porn, getting deeper into the world of it. Everything looks like porn to them. They have wet dreams and spend a period of passion and blood-boiling time. Dong-seok likes AV actress Yakijaki from Japan. A new girl named Mi-ae comes to their discussion class and he likes her because she looks like his favorite porn star. He's happy he can see the star on porn and Mi-ae in real life.