how do you save? also there is an error that appears after you follow the store demon that stops me from continuing
Viewing post in Mahō Shōnen: Magical Battler comments
As Mythic said, you save using the diary in your room and the orbs in the dungeons.
If you are getting an error when saving, it might be due to using incognito mode on the browser or some other higher security setting. (Saved games are saved in the browser, and that cannot be done when using a mode that prevents data to be stored.)