>>54238489I think Penny's conflicts give her more complexity than Nemona. She wanted to stand up for herself, but didn't have the guts to do it. Her grand plan to secure respect for her and her friends backfired on her, leading to her suspension, a complete turnover of the school staff, her friends' dogmatic loyalty towards her, and an end to the problems the school faced before. It was a complete upheaval, and the school she returned to was thus a completely different academy from the one she left. Her guilt and need to resolve the problems that still lingered drove her to dubiously legal activities, such as hacking your phone, causing the collapse of the organization she founded, and embezzling League Points to fund her crusade.
Penny at the end of Starfall Street is a girl given release from the burdens and shackles that bound her for a year and a half, allowed to be just a normal girl once more. Which shows the somewhat sour attitude she has in Area Zero, but still plays off Nemona and Arven well.