after continuing a bit i found easy grinding method so i manage to continue without reset, i was in chapter 5 end also when i realized(make that boss fight with karin super crazy). in chapter 7 dungeon there is a house that if you exit you will found the enemy that you can backstab so i just continue go up and down from that house as it's easy 400 exp every 3 sec and also level your 3rd party memberSameeeeee I was sooo pissed because I had to reset the game like in chapter 7 because the dificulty spiked to the heavens I never even realised I got no exp from battles.... But the avaoidence skill you learn in sword school carried hard xd
but i still miss the item you can get for stat boost...