sister and is devastated. Noah later reveals Kate kissed him and when Andrew confirms the allegation is true, Sophie tells acting principal, Priya Kapoor. Noah reveals that Kate was grieving for Mark when she kissed him. Sophie confronts her sister about keeping Mark's death from her and their relationship deteriorates. Sophie then decides to moves in with her uncle, Paul Robinson. Sophie helps her cousin, Andrew, organise a gig for local band Red Cotton. Sophie meets Corey O'Donahue during the gig and they kiss. Andrew sends Sophie home, but she starts blackmailing him into letting her see Corey. When Sophie decides to break up with Corey, Andrew asks her to keep dating him as he wants Corey's brother, the lead singer of Red Cotton, to let him manage the band. Kate leaves town without telling Sophie, which upsets her. When Sophie comes to watch Andrew shoot a video for Red Cotton's first music video at the school, Corey's brother, Griffin (William Ewing) is unhappy. She apologises for hurting Corey and helps the band with the video. However, she gets carried away and wrecks a bathroom. Sophie then reveals that she thinks Kate left because of her, despite Paul reassuring her that that is not true. When Sophie refuses to apologise for wrecking the bathroom, Priya expels her. Roz Challis (Janet Watson Kruse) from the DHS hears of Sophie's expulsion and explains that Kate has seven days to return or Sophie will be placed in foster care. Paul leaves to find Kate, while Susan Kennedy (Jackie Woodburne) looks after Sophie, who later asks her to be her guardian. Believing Kate will not return, Sophie decides to run and she stays with Rani Kapoor (Coco Cherian). Rani and Callum try to encourage Sophie to return home and Callum eventually tells Paul where she is. Kate returns in time for the DHS meeting and she and Sophie admit they do not want to live together anymore. Paul successfully applies to become Sophie's guardian and she begins attending Eden Hills Grammar. Sophie decides she wants to return to Erinsborough High and writes an apology to Priya. She also gets Red Cotton to perform at the school, but Priya tells her it is not enough. Kate later talks to Priya on her behalf and Priya allows Sophie to return. Sophie becomes jealous of Callum and Rani's friendship and tries to turn them against each other.