Thank you! I'm so glad you stumbled upon this project. When I first created Emil, you were exactly the kind of person I wanted to reach with him. Your reaction to him was everything I could have hoped for. You have no idea how happy that makes me!
Unfortunately, there's not much I can do about your requests, however. Asher and Colby aren't self-insert characters, they are very much their own people and part of that is they will sometimes do or say things you might not. I understand it can be difficult to relate if they behave in a manner that is at complete odds with you, but drinking is already such an established thing with them that it can't be easily removed. Removing alcohol from the game entirely would also mean I'd have to remove Hugh, and that's not something I'd ever be willing to consider.
As for the language used, I can definitely sympathize with how difficult it must make it to read. Unfortunately, I have to make sure that it's enjoyable for my target demographic first and foremost. I've discussed this matter with my fellow VN creators and that seemed to be the consensus among them. On the bright side, while it may be tedious to have to look up words so frequently, you might learn a lot of new vocabulary in the process and your English may improve to the point where you don't have to look anything up anymore!
I hope these issues don't prove to be too much of a hurdle for you long-term, and that you can continue to stick with the VN. I apologize that I can't do more to accommodate you.