Enkou Shoujo 2 ~JK Idol Marin no Baai~

In the high school idols' life, the moment you turn 18 you become a grandma (BBA), and at the age of 20, you'll become industrial waste. And today, I turned 18. The time which I can never regain is now over. --I don't want to become industrial waste. I want to run away from this trash industry as soon as possible. But how will I do that?