Airi and Rise are twin sisters who like to spend their days having fun with their best friends, Maco and Coco, eating yummy food and hanging out with their older brother, who idolizes them. Rise's one of the twins under Big Brother. She was the straightforward one of the duo. She always wears red colored clothes. Airi's the other one of the twins under Big Brother. The tsundere of the duo, and wears blue colored clothes. Rise's the reliable Alice, while Airi does things at her own pace.