I am not sure if anyone has posted the Save Editor yet, but you can google it: NaiSaveDump
Here is the link on Github:
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It works really well. You first have to extract the save data (slot #) and then you can edit it with Notepad/Wordpad. You can edit all aspects of the game, including all her attributes (Knowledge, Singing, Etiquette, etc), money, her stats (love, pressure, promiscuous). And unlock all memories/scenes.
Example of huge text file for the save (on slot 1):
View attachment 701023
Instructions for the Editing Save files (this example will be for the "Slot 1" save):
First, start the game and make a save in Slot 1. Exit the game.
1) Download and extract the NaiSaveDump to a folder
2) Use command prompt, navigate to the location where the files were extracted
3) For instructions of commands, type:
4) To retrieve the Slot 1 Save into your NaiSaveDump folder, type:
--- "Slot1.json" file will appear in the folder, recommend to back it up, just in case you screwed up the save file
5) Edit the "Slot1.json" file with a text editor (like Notepad), then Save
6) To register your edited Slot 1 save back into the game, type:
7) Done.
Now the changes you have made should be reflected in the game.
Hope this helps someone.
Also, I will attach the Slot 1 save I made of my 100% game unlocked, you load the game, then it should unlock all the memory scenes in the main menu as well. Hope it works for you. The save is from the latest version of the game as of 2020-06-21