Thank you so much for your interest in my game! ❤️
To answer your question, yes! The itch.io version includes everything right out of the box, so you can play the whole game without needing any patches.
As for the Steam version, it actually includes an after-story for players who really enjoyed the game. However, please note that most scenes in the Steam version will be cut unless you apply a patch. Also, my publisher is currently working on the English translation for the Steam version🌸