To get her to work in the bar, you need to buy her bartender outfit and give it to her. You have to wait for her to get back to the hotel to give it to her.
I already bought and gave it to her (after I noticed the glitch, because she didn't ask before like it happened when I first played a couple years ago). Also, she already returned to the hotel after she was arrested in the hospital. I really have no idea what to do. Is there something I can do with a save editor to fix that? I don't mind losing the part of the story where she starts working at the bar since I played before and I am playing again to see what's new
Oh, and I also have an issue with Jin and the garden. I built all the upgrades available and still I don't see her anywhere except for Lin's bedroom. There's no-one in the greenhouse btw. (I can call her to the dungeon too, but I don't think that has anything to do with it because I already completed every submission event available)