Nils

Nils (ニルス, Nirusu?) a half-dragon that takes the form of a blue-haired boy during the game and one of the few to survive the Scouring, along with his sister Ninian. During the Scouring, their mother Aenir was kidnapped and taken away from her family causing their father, Nergal, to go search for her, but he could not do so with infant children in tow. After waitng for Nergal in a small house in Valor and near the Dragon's Gate, they eventully decided to pass through the Dragon's Gate as advised if he never returned. Nils was later lured from Harmony by Nergal, during which he was forced to take the guise of a human because of the massive amount of quintessence drained from him when he passed through the Dragon's Gate, and was later held hostage as a means to open the Dragon's Gate. He later escapes to find Lyndis and the other warriors.

Nils poses as a mysterious flutist accompanied by his older sister, the dancer Ninian. He is reluctant to trust others, but remains kind to his comrades. Statistically, he and Ninian are identical (their level-ups even carry over to each other as they exchange time as party members). Later in the game, Nils uses his abilities of foresight to serve as a fortune-teller after Hannah leaves. Unlike Hannah's services, Nils's are free. Like Ninian, Nils cannot attack since he does not wield any weapons; his abilities are strictly supportive. Nils can also use rings with various supportive abilities like Ninian.