This was a really cool play through. I enjoyed how high quality the drink and rendering of the backgrounds were. However, I would like to point out some bugs/errors I experienced while running through some options:
1. When running through the conversation of what made Lili attracted to you, after (Red) Lili says "By the way...", you are given the option to take a drink. When I selected yes, it shows Lili's sprite while still on the drink background. Then by selecting "no" then "your sense of humor", everything goes back to normal.
2. When given the list of drinks to select from, Venus Blush and Corpse on the Floor were the only drinks that did not have an image. Then when continuing through the rest of the playthrough, all the backgrounds disappear, saying they are not found at the top left corner.
3. The story from here just continues with no backgrounds and just cuts off when it's finished. I thought my computer crashed until I clicked on the screen, taking me back to the main menu. I don't want to assume if this was an experience where there was supposed to be bugginess in the plot, but I will say it made things a little confusing.
This may have not made a lot of sense, but I really recommend looking through and checking it out.
Note: It's amazing that you guys have been able to create a lengthy game in such a short amount of time. This is still a really cool concept and if this was meant to be in the game, then completely disregard my comment. Otherwise, I wish you guys the best of luck with bug fixing.