(Finn just came in through a portal to a world called phantom.in that world his uncle lives.his uncle raised him because Finn killed his parents at a young age.the death was from Finn not being able to control the power of the phinix inside him.but Finn just released his uncle was using him for his power so he ran way.he looks at your group of friends he seems scared... you are william as your friends are ava,and jac.ava is very hiper person, Jac is always angry and cursing, and william is smart