Of course, if you're unlucky, you can use Adrian's team skills once to max out your health.
To be safe, after obtaining items that increase the mana cap and restore mana, you only need to use the protagonist's team skills, the protagonist's 1 active skill and Anna's skills to easily complete each battle.
The advantage of this lineup is that it can be unlocked at the beginning of the game and is very strong, suitable for players who want to quickly get full redemption rewards.