Unless you're being technical, this is impossible.
the text file that comes with the dlc says you copy the www file and overwrite the games www file which will just add what's inside the dlc www you can also just open the dlc www copy the files inside of it and place them into the games www file they you go to the hotel and enter the code thats in the text file with one of jabberwock options
Last time i did that, the game could run anymore since in the game www file there are all the data and save file (and more of course), beside I see that the Spi file is already there with all the same things then the one inside the DLC www file.
not sure what's wrong then since the dlc www only has the dlc characters data and when you copy and past it over the games www file all it does is just add the dlc character aka the only folder that in the dlc www into the games www folder it should not effect anything at all, and if your game already has what's in the dlc www then it already has the character and all you need is to just use the code in the text file that under the dlc www to get the item you need for the dlc scene.
Go to the convenience store through the week and you'll find that the two girls by the door will have a quest icon, do that, and then you'll get the quest, next time you'll go to sleep you should have a new option to wait for night/wait for stream (since she live-streams on her website essentially). After that just go buy all her stuff and then you'll get a new item to use before you sleep that'll get you into one of those dream "battle" sequences
Uuuhh.. if youre referring to her bonding quest (which i think that's what it was) you just go around check the area where the rest of the melty ooze npcs are, and (i think?) a little discussion with rose happens, then you go down to the area of the hospital that has the massive blacked out square you need to traverse through. Once you're there go through it (with your light/Enemy search OFF.) until you get into a fight with said intelligent melty ooze. if for whatever reason you cant turn off the flashlight, talking to the melty ooze right before the maze starts should let you prompt to disable it after she asks you to turn it off, do that and it'll turn off, mind you though its a one time THING, so you best hope you didnt talk to her while going through the hospital the first time around.
Oh, and you can tell its that melty ooze because it'll literally be blue. She doesn't have any special scenes so dont really bother prolonging the fight since it's also a 2 stage, the first one being that fight, the other one being in the area where you fought rose the first time around because the melty ooze runs away to there.
