Tsukasa's mother is a piano teacher and his father is the executive of a company.[1] As a child, Tsukasa was less self-assured and more uncertain, frequently worrying about his sister Saki and her sickly condition. Because of her illness, he has years of experience playing "Twinkle Twinkle Little Star" on the piano, and practiced it often in the hopes that Saki would come back home soon and play with him. Ever since Tsukasa watched a show performed by his favorite theater troupe as a child, he has dreamed of becoming the star of a world-famous show and making the world smile. After failing his audition to become a performer at the theme park Phoenix Wonderland, Tsukasa is hired by Emu to return the dilapidated Wonder Stage to its former glory with incredible performances. Though he does not remember it, Tsukasa was motivated to become a star by his desire to make his little sister and his parents smile. Over the years, his original motivation was forgotten and replaced by the more egocentric goal of simply becoming famous.
