Hi, it is not necessary to start a new game.
Using the save file "1-2-LT1.save" you will be able to start the new content immediately.
hi me this is what i did but we place it or save it 1.2 on mac
I don't know if I understand your question, but according to the documentation, the location of the save files should be "$HOME/Library/RenPy/Heroes University H 0.1.5.1". on Mac
