Complex sentence: When Saki was having difficulty with classmates at school, her family encouraged her to keep going; being very supportive of her constant anguish in the past due to her powers, agreed to transfer her to another school due to her problematic, rumour-based reputation.
Split into simpler sentences: When Saki was having difficulty with classmates at school, her family encouraged her to keep going. Her family, being very supportive of her constant anguish in the past due to her powers, agreed to transfer her to another school due to her problematic, rumour-based reputation.