The legend "About the Creation of the World" was first put into a written format by aspirant of Tuvan State University Aibek Soskal at the request of the director of ensemble "Edegei", Kima Chozarovna Dongak. For the next production, it was necessary to find out its origins: how did Sook-Irey get into traditional Tuvan culture? Designer and ballet-master Vyacheslav Dongak created Sook-Irey's costume on the basis of this legend.