Some of the quest does not make any sense
27LV requested to kill 50 cows -> lv 27 does not get lots of exp from cows
27LV requested to kill 50 zombies -> same as above
28LV requested to kill 50 Stirges -> got a little bit exp, 10lv gaps
30LV requested to kill 50 Nekrozen -> not many exp from them since the monster is LV 15
32LV requested to kill 50 Harpy -> a little bit hard for newbies since harpy is lv39
I suggest making a bit change for the requested monsters. Make it similar to our level, like within 3 levels