- "I know we have what it takes to put on the best show ever!"
- ―Shiraishi An
Shiraishi An (白石 杏) is a first-year student at Kamiyama High School. She's part of the street music group Vivid BAD SQUAD.
An's father is a former musician who's popular in the street music scene in Shibuya. She hopes to one day surpass him. She met with Kohane when she visited An's fathers cafe and invited her to form a group after hearing her sing known as the "VIVIDS", before joining with Akito and Toya to become "Vivid BAD SQUAD".
She is Akiyama Mizuki's classmate in school.
An has orange eyes and long black hair with blue tips, worn loose and has a little stars around her hair.
An's outfit consists of a black shirt tucked into her white shorts with neon green accents, two black straps on each side hooked to the front and back of her shorts, and a blue-green and white oversized jacket which has the word "HEADS" printed on its left sleeve and neon green accented strings. She also wears a pair of neon green headphones around her neck and white sneakers.
An is a cool and candid girl with an unyielding spirit.
- Azusawa Kohane: Fellow group member. They're very close friends and An encouraged Kohane to change.
- Shinonome Akito: Fellow group member. They're rivals.
- Aoyagi Toya: Fellow group member. An wonders why he's always with Akito.
- Kiritani Haruka: Friends since middle school but separated in high school. They still hang out together outside of school.
- Akiyama Mizuki: Close friends and fellow classmates from 1-A. An invites them to the school carnival with the reassurance that they won't stand out too much with everyone in costume.