My first thought for this as I was reading it, was playing a male Gem who is essentially an Assassin. He would look for any possible opportunity to kill(silently, if possible) any Drakkan, in a position of power, who seeks to continue in the ways of enslaving his people. Assassinating leaders, chancellors, strategists, etc. all while hiding it from the Drakkans, as well as his own race.
Then I read the part where apparently we can only play as a bride or a Drakkan </3
xDD
Lol and the Gem people are natural pacifist. Raised in a culture that promotes amity and forgiveness, rather then violence and fighting.