If you never read about Drifters, relax, theres no need for it to understand this RP.
If you love the Fate franchise, rejoice, you're gonna love this.
Setting
To cut a long story short, we have all been summoned into the world of Vearth. A world not unlike our own except with several quirks. Humans are not the only sentient species there. There exists Elves, Dwarves, Gnomes and even their less civilized counterparts such as Orcs, Goblins or other dark species. There are two catches to this setting though, humans with their vast numbers have conquered the world and we are not your typical summoned people. We are Servants those of history, myth and legend. You may be Oda Nobunaga, the most famous warlord of feudal Japan or you could be Arthur Pendragion, King of Camelot. The choice is yours.
Plot
The summoned individuals fall into two categories; the Offscourings and the Drifters. Offscourings are generally wretched individuals or those who were betrayed in life. Examples would be Morgan le Fay or Jeanne D'Arc. Drifters are not bound by such specifications. The one common aspect between the two is that they were famed and powerful people of the past. The offscourings will be led by Him to eradicate humanity whereas the Drifters will be left to decide for themselves who to fight for.