Should sick and weak girls be bullied by blond-haired thugs?

It is well-known that in novels, games, and anime, there exists a type of extremely powerful creature — the blonde villains. They are highly proactive and excel at lying, deceiving, and doing countless bad things to corrupt young girls.

After the timid, introverted, cowardly Bai Youyou dies, she unexpectedly binds with a useless system that matches her personality perfectly.
The system’s mission: to make her play various incompetent, pitiful doormat characters from different stories…