What do you mean grind? It's a story driven game and you don't need to repeat actions ever.
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On the update:
It's clear we're getting to the end of this game and NTL is definitely stretching it out to keep it going as long as they can.
I highly disagree that it is a story driven game. This game has a grind called "search for Items" which i absolutely hate in any erotic game.
A story driven game does not rely on finding certain items on certain places at certain times making me dependant on a guide to know where to look for said items and stuff to ADVANCE the story. That or i wander around for hours trying to find said items on my own making this not a VN.
A story driven game is based on reading trough maybe tons of dialouge or narration but not depending like a Zelda game find item xyz to advance the plot. Thats not how story games work.