Geiru was born to a famous rakugo artist who, until his death, had been the best the Toneido School had to offer, and thus was given the title of "Uendo Toneido". Hoping to follow in her father's footsteps, she became one of Taifu Toneido's rakugo students alongside a childhood friend of hers. However, it soon became apparent to Taifu that she lacked her father's talent for the art, and so he instead recommended that she become a balloon artist. Despite disliking the work.