Haha, I actually based on their canon titles! King of the cul-de-sac (a human king, warrior) and Queen of the forest (a human queen, druid). I was tempted to make Tamarack an elf but being a human who cares for nature is more storytelling.
In their pretend game, Qiu is a dethroned king and is on a journey with a hooded-companion (this can be any MC!) to save his kingdom and eventually saves Tamarack's forest later on.