This quest includes daily quests that are highly recommended for you to do every day, here are important points for explaining Monster Resistance:
The NPC will give the quest as shown in the picture, the number 891000 is the quota of Monster Resistance. Every kill EXP quota monster will decrease. If it becomes 0 then the EXP obtained will become normal again.
Sample case
Every time you kill, the exp obtained from monster A is 100exp. When Monster Resistance quest is active, the exp obtained becomes 1000exp per kill, and Monster Resistance quota is also reduced by 1000 so that 891000 becomes 890000 and so on until the Monster Resistance quota value becomes 0. If it's 0 then the gain gained from the monster A returns 100exp per kill . After quota 0, please report to Monster Resistance NPC to get Zeny and Job EXP bonuses.
Quota Monster Resistance will increase depending on your character base level, and because Monster Resistance multiplies the exp you get, it is highly recommended not to run Monster Resistance when your stamina has exceeded the limit.