Rosto was likely born around 225 HE. Not much is known about Rosto's social background, although it is rumored that his family were merchants or even nobility in Scanra. However, this is contradicted when it became known that his mother was a Player known as the "Dancing Dove". She was considered quite beautiful and it's unknown when she died or how. Rosto later named an inn after her. But no one can be sure as he doesn't use his surname anymore and is only called "the piper" because he plays the pipes well. Nothing is known about how he came to be a criminal or how he met Aniki Forfrysning and Koramin Ingensra, either.