Board Thread:Modding Discussion/@comment-30778856-20170515174337/@comment-32874861-20170802224629

You can get her previous hairstyle back, there is only one problem, and that is you cannot get it in the right color.

To get the hairstyle back, you need to open /YandereSimulator_Data/StreamingAssets/JSON/Students.json and change her hairstyle number to 13. When opening the game after saving it like that, you will see her with her old hairstyle, but it will be black instead of green. you can change her hair color in the same file, but no matter what you set it to, her hair will not become green. :/