Born in Kenya, Pielina Wanjiru Schindler grew up in Wanne-Eickel, Germany, where her musical experience started in a girls' choir and ballet lessons.

[7][8] She is a member of the Sisters (de), an all female band of singers, and they entered Gender Riots singing Unite, ranked 14th at the Bundesvision Song Contest 2008, North Rhine-Westphalia.

[12][14] Collaboration with Plan International invited the Sisters to tour Brazil, Ghana, Togo, as well as cities in Germany for the project "Girls go for Goals" in 2011.

The film followed her dealing with the struggle to finally find peace of mind and recognize that her identity is not split between being a Kenyan and living in Germany.

[18] In 2014, Onejiro went on a tour to Addis Abeba for a non-profit organization Viva con Agua for the cause of clean drinking water and performed as a guest singer at a concert by Gentleman with Tamika, Ivy Quainoo and Silly Walks.