If you need help finding when all the scenes occur, I found a guide (in Japanese but Google Translate works well enough):
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The dev is also holding a crowdfunding campaign for more content for the game and merch, of which an animation viewer, a new character, some acrylic figures, an Anne body pillow, and Madoka bedsheets have already been funded. The final stretch goal is for a 'dating mode' DLC starring the guest characters at 2 million yen. It'll be a way to add more scenes for the guest characters and the dev promises an actual sex scene with Haruki's crush.
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