What does the song "Bad Sister" mean?

This song aims to encourage people to dare to be true to themselves and pursue inner freedom and happiness. Bad Sister is a popular song sung by Chinese mainland female singer Elva Hsiao. This song mainly expresses a free attitude and character, and the heroine described in the lyrics is free and unrestrained, free from traditional constraints and norms. Regardless of other people's eyes and comments, she pursues her true feelings and thoughts and bravely tries to be herself.