NOOOOOO don't touch balance, it is literally perfect right now. Don't become Overwatch!
I assume Mofu-san will be working on the balance of the game frequently until it's in a near complete state, as well as post launch in the future. At the moment, the game still doesn't have proper level designs or minor enemies to fight.
Right now, the levels are more just test spaces/rooms to test the bosses and make sure certain types of platforms or other things works.
Later when the maps are redesigned and expanded, Nene's will have more truffles to collect, which increases her health. If the game isn't properly balanced to factor in the changes in level designs and collectables, it could potentially throw the balance off completely.
I just hope that completed version will include stuff from This and other older versions. Instead of how AAA devs do or even some indies too when you can only play good old ideas with older versions and then you MUST keep it on harddrive or pray to all divine powers to keep Mega/Torrent/Google Drive/Yandex Disk/etc with older version intact. Innocent Witches devs had right idea, but I understand if it is too difficult to pull off. Just , not even suggestion, just want from me, ofc devs know best and it is dev's vision not mine. I understand.