The objectives are one of the first things you see, while MC is lying on his bed at the very beginning - though right now it's called "soritiy ball" because of patreon.
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You obviously have to include the girls (boys) which are meant to go to the ball/prom with MC, which are Roxxy, Eve, Annie, Ronda, Mia, Judith and to a lesser extend Debbie, Jenny and Kevin.
So before their stories aren't done and before the ball/prom isn't implemented, the game really can't be considered done. At least in my mind this part has always been the more important one and as far as I see it, it's the same for DC.