It started as a normal ride through the forests of Switzerland - Elise and her older brother, Basch (Vash) Zwingli, were on their way back home from one of their usual friendly picnics up on a hill near their house. That's when it happened. One wrong turn led young Elise into a life-changing scenario, forcing her to choose between her old home, and a new life. While there, she finds newly found friendships that could turn out to be deadly alliances. Meanwhile, Vash searches frantically for his beloved little sister in hopes of protecting her from the dangers in their world. But by the time he gets there, it might be too late...