A few bugs and missing features were discovered, here's a quick fix for them! It's funny how one may forget to add health restoration after introducing the battle system ^_^

✧ Healing  - Accidentally forgotten feature makes a comeback! You can now restore your health by sleeping, or by buying healing potions and using them in battle.
✧ Healing potions  - Now they are not just a placeholder in the shop, but they really do work (currently only in battles but I'll change it in the next update).
✧ Battle code refined  - There were a few bugs in the battle code that could cause some issues with your schedule. They were terminated!