A pichu from Adventure Of Team Sunflower comic

Was born in a clan of Pichus, Pikachus and Raichus deep in an unknown forest. After a horrible event she can't seem to recall, she was kicked out of the clan and forced to live on her own. Muro traveled very far in search of a better place to live and after a run in with some bad Pokemon, was rescued by a wandering Petilil who now refuses to leave her alone, or is it the other way around?