It's a fairly early WIP demo, bound to be some dead ends or unfinished untouched stuff, or paths just not fleshed out yet, just try a different class for now, After that point the end of the demo is pretty soon so just make sure to save that choice scene for later. Hopefully there will be a skip and rewind function for future replays, :3
Thank you for the feedback! Ren'py does have built in skip and rollback functions available in game (I'll still be exploring ways to possibly enhance or utilize them). However, the first few updates will likely require a restart due to the nature of the program with adding new assets and variables for those assets. Once the majority of the assets are added, then hopefully the content will be playable from the last saved spot each update.