What are the classic routines and anti-routines in the cartoons you have seen?

It was an idol animation "Backstreet Girls" that I watched when I was in high school. Generally, idol animation is an idol group composed of beautiful girls. Through friendship and sweat, they get fans' love step by step and finally succeed. But the plot of Backstreet Girls is very mysterious. The three idol girls in the film are actually gangsters. Because they angered the boss, they were sent to Thailand for sex change surgery and became idols to make money for the boss. As a result, I didn't expect to be very popular as soon as I debuted, and my popularity was super high. But what the three people think about is how to quickly screw up the combination and stop being a transsexual beautiful girl idol, which is enough.