Extremely HARD quest Note: Premium account of 1 day. And here is a list required EXP for each account lvl according to my memories (not 100% accurate) Lvl 1 = 0 Lvl 2 = 4000 lvl 3 ~ 6000 lvl 4 ~ 9000 lvl 5 ~ 13000 lvl 6 = 19000 lvl 7 ~ 28000 lvl 8 ~ 41000 lvl 9 = 51600 lvl 10 = 75500 lvl 11 ~ 93000 Well, good luck to anyone if they have the time to grind this game several hours a day as the rewards is really generous, but the efforts required increase unfortunately as well.