Woohoo! I was very excited by the very challenging battle system! And I managed to clear the game, but I was already having a lot of fun with it!
The battle against small foes is easy when it's one-on-one, but when there are multiple foes, it's difficult to avoid their attacks and predict their moves, but it was great when I could get through it successfully.
The HP recovery system makes battles very interesting because you have to attack enemies to accumulate energy, and you can only use it when it is safe to do so.
What bothered me a little was that since all the energy was used for recovery, there wasn't enough left over to put into other actions. If I get better and can go without recovery, I can fight stylishly!