Weronika grew up in a poor and dangerous environment where she was unable to get a proper education and had to constantly protect her younger siblings. Her father, who was a touring musician working in Japan, taught her how to sing when he was drunk. Weronika later became involved in her home area's darker part where "people gambled on anything and everything" and she started partaking in singing battles (referred to as "music vale tudo matches"), and was able to provide for her siblings thanks