Bad Girl is a delinquent who goes to the high-school in Japan with her twin brother, Bad Boy. She is 18 years old and she always wears a pink health mask. She has long navy blue hair and blank black eyes. She never goes to class and always hangs around her brother. She has a blue Vespa that she uses to ride to school on. Her favorite color is pink and she loves matcha flavored things. She uses her bat to defend herself if she needs too or feels threatened. She won't tolerate murder.