>>57306318>This sounds so incredibly boring and out of characterYou know nothing about Marnie so don't try to say what out of character for her.
Marnie in the game only dresses like a punk but her personality is much more well mannered and sweet like a typical nice girl. In fact the pink tops she wear meant to represent her sweeter feminine side inside her delinquent look. Furthermore Marnie's biggest goal at the end of the game was learning how to smile at people. I simply imagine that Marnie eventually learns to smile more genuinely as she grows up and show her sweeter feminine side more openly instead of forcing herself to be a punk. Eventually she will get married and became a housewife plus gym leader who gets embarrassed at her delinquent past.
I can totally see an older teenage Marnie on Ichika from Blue Archive.