During a certain time period, there used to be Symborgs resembling Acie, Esie and Oata, as well as two sets of Symborgs resembling Little and Big Yus. However, an Iphling outbreak (caused by a Symborg representing the Decimal I) occurred, and all of these Symborgs were fatally infected and turned into Iotated variants. In a miracle, the Oata Symborg survived, and her Iphling has become her symbiotic partner.