Art and music is simply incredible, but I'm sure you already heard that before...
But I gotta be real with you, the game is a bit boring. The whole game is about watching two people talk and then pressing a button. I get that there are multiple endings and stuff, but at the end of the day, the game is still just a show, not a game. The unfortunate part is that you can't even really fix it, as this roots from the game idea itself. The only real way I could think of fixing this would be to completely replace the shop with a storage room or something, where you have to find the correct or incorrect items (based on your choice of course), because then there's like a time limit that intruduces tension to the game, and thus making it much more fun.
Also why is the increase dialogue speed option only in the main menu? You could have just added a button to fast forward or skip parts of the dialogue instead, which is often preferred by players anyway. Another thing that could make the dialogues better would be implementing pauses between some words to sort of simulate how real people talk. Without it, it kinda feels robotic and emotionless.
All in all, the game has some massive game design flaws, but at least it looks really good to compensate that. sort of...
I hope you implement these ideas into some future update as it would make the game much nicer.