An Shiraishi, a character from Project Sekai who is a leader of Vivid BAD SQUAD alongside Kohane Azusawa her partner. She want to surpass legendary event. She is voice by Tomomi Jiena Sumi. Her birthday is 26 July.
Story Junior High School, An saw music event "RAD WEEKEND" put on by her father Ken Shiraishi and his band. After seeing event, An become determined to surpass it. Three years later she find Kohane Azusawa and they become partner after An sing with Kohane. They meet up with BAD DOGS (Akito Shinonome and Toya Aoyagi) and they do rap battle which is disrupted by Musician cut power to microphone. Akito take credit for cut power because he think Kohane is not serious about surpass RAD WEEKEND, but Musician apologise for cut power and say Akito and Toya have nothing do with it. Afterward, An and Kohane (Vivids) merge into BAD DOGS and form band Vivid BAD SQUAD with goal of surpass RAD WEEKEND.
An is also friend with Haruka Kiritani and help Haruka become idol back in Elementary School after they sing together.