[About lvl 110 awaken set]

I would like to know wich is the best lvl 110 awaken scroll for demon summoner? and what is the difference between upper scroll and lower scroll

[Fortification]

how to fortify weapon to +14? when I go to fortify my weapon it says "Item upgrade level is not included in the level requirements of the charm" is there any different stone that I need to use? how to get?