Another scenario idea imma throw out there, is that perhaps the "Heaven" dealers (I honestly forget the name of the organization Rena is fighting against... I
think it was mentioned in the prologue?) decide to strike back against her.
This comes in the form of an attack on her residence, she wakes up [or perhaps via player option she doesn't, cue h-scene and fast track to bad result* I'll list shortly] and dispatches one goon/mercenary then suits up. Sidescroller mission then starts set in her home base that gives it a bit more life rather than static images when resting/showering/etc.
Eventually fight your way to the garage where the sortie is, fight more goons and you either dispatch them and beat info out of one of them that leads to next mission OR *get beaten, subdued then taken to a prison/hideaway where you'll then need to try and escape from.
These mercenaries can show off new abilities, perhaps (if dev
REALLY wanted to punish the player) each mercenary has a unique ability to help them stand apart from one another or you encounter a different one in each room that fights differently. Gives plenty of antagonists for Rena/player to enjoy pulverizing in the future.
So ultimately both outcomes will lead to the same story location, just going the latter/H-scene way will make it much more difficult.
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No idea how I'd go about translating that concept from english into japanese but uhh... yeah, figure I'd share.
Prob a tall order for someone with crippling depression but if its ideas they're after then why not these ones?