There are only three allies, while the number of enemies is more than double and they are extremely powerful. Since turns can be reset without restriction, players can repeat various strategies and design and execute the optimal turn. Each unit has unique abilities and roles, and players can equip new skills or grant additional upgrade. Depending on the stage situation and synergy between allied units, various combinations can be attempted. Each stage features unique environmental effects that can work to your advantage or disadvantage depending on how you utilize them. Enemy units also possess various abilities and interact with environmental effects, giving them their own strengths and weaknesses. Players must utilize the various capabilities of their Unit to counter enemy attacks, use the terrain to create advantageous formations, and overcome unfavorable situations by utilizing the environment and enemy attacks.