Birk was born the same night as Ronja—the only son of Borka and Undis. He's got a thoughtful, somewhat sensitive side, which sets him apart from his more outgoing counterpart. That said, he's also pretty pragmatic, which gives him a slightly cynical edge. It's Ronja's cheerful openness that really pulls him in, though—her directness kind of balances out his more guarded nature.
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