I'm sorry, but there are no cheats for the game. There might be something online to modify RPG Maker MV game parameters to increase HP, attack, level, etc., but I don't know them. What I can advise you to do in battle is to attack and take out the guy next to Frost who buffs her—he has low HP. Then focus on the woman. Try to make the most of instant abilities and always activate the Kami in the last round before it expires. If you have a Level 2 Kami, activate it twice to double the attack bonus. The systems I am referring to are 'online save editors' used to modify character parameters in game save files for games like RPG Maker MV or similar. However, I don't know much about them. If you ask an AI, it will be able to tell you better what these editors are and if they suit your needs. I hope I've been helpful.