Because of the game's mechanics, almost every route has a "bad" version where the story culminates in violence or extreme psychological distress. How to Get All Endings
Unlike the infamously bloody School Days , many bad endings in Shiny Days are simply abrupt or inconclusive, though some darker elements remain.
The very first choice in Shiny Days determines which major narrative branch you will follow: Setsuna's route or Inori's route. These two storylines are almost entirely separate and lead to different sets of endings.