Luminous Arc developer Imageepoch wants to make their first self-published game as tough as they can. Tale of the Last Promise already has a permadeath system, so if an ally like Joshua, the younger brother of Ceres and Leclaire, dies they’re gone from the game.
There’s one other caveat to the system. If Wolf, the lead character, falls during battle the game abruptly ends with a game over screen. The trick to battles is controlling "hate" an unseen statistic similar to aggro in MMORPGs. Enrage a monster by clonking it with a special attack and it will target you. Perhaps, with a strike strong enough to kill a character in a single hit.
So, if your strongest attack doesn’t finish an enemy off it might be curtains for one of your characters. You might want to spread the damage around with weaker attacks before using your skills with cut-in attacks, these tend to be the most powerful. Unfortunately, for your party the Savi Shantie counterattack at full force even when near death.