Board Thread:Questions and Answers/@comment-28017790-20161217224545/@comment-30036101-20161221033715

There is an unofficial version for Mac.

Right-click Yandere Simulator and click "Show Package Contents".

Go to the "Data" folder, then "Streaming Assets" and "JSON". You should find the students JSOn file there.

Follow the instructions given by Dan144 and Osana should be added into the game.