Who is Finn from Enna Burning and what is their importance?

Finn is the Forest boy who secretly loves Enna. Wanting nothing more than to simply be with her, Finn fights for Bayern during the war and goes on several secret missions with Razo and Enna. When Sileph captures Enna, Finn tries to save her and is captured and held hostage until Enna escapes and frees him and Razo. Finn finds Enna and Isi while they are on the way to Yasid and accompanies them on the journey, taking care of the girls are they are assaulted by their elements. Eventually, Enna realizes that she loves Finn in return and they are happily together.