Yeah, as I've said in other replies, the saving/loading system seems to break for everyone else even though it's always worked just fine on my end. Hopefully the post-jam version won't have that problem.
There isn't anything after the mysterious woman battle, I never had the time to add more because that was added shortly before the deadline. The post-jam version is planned to have the story fully finished, the assorted bugs squished away, and some improvements to the visuals as well.
In any case, I'm glad you enjoyed it! Thank you for playing my entry!