Other Rules of PvE

If a player thinks it is risky to move forward, they can choose to retreat from the expedition, and they will be awarded what they've earned up until that stage. If a player fails to complete a stage (all 3 Pandas sent to fight are knocked out), then they will get rewards up until that stage as well. Therefore, it is especially important to adjust your combination of Fur, Class and Element when facing stronger enemies, in order to earn more efficiently.