Rage of Bahamut: Genesis

The demon legion, led by Asasel, descends upon the city to claim the God Key while the humans go on the defense. A happy Amira appears before Favaro, claiming she met her father within the city, before dashing off with an empty stomach. The King's forces battle the demons at a losing pace while Amira happily stuffs herself inside the kitchen. Leaving Favaro, Kaisar and Rita to question about Amira's father. Azazel infiltrates the castle, leaving carnage behind as he seeks Amira who has now passed out. He proceeds to taunt Kaisar about his father's death, admitting his involvement, but Favaro takes the blame and challenges Azazel, buying time to get Amira and the God Key away. Eventually Kaisar comes back to aid Favaro and Azazel recalls he is actually the killer of both their fathers. Kaisar sacrifices himself to buy time for Jeanne to charge up her sacred weapon Maltet who then delivers a decisive blow to the distracted Azazel. The tide changes, the humans winning and Favaro manages to save Kaisar. In the meantime Rita finishes fighting and goes back to wake Amira only to find her missing. (Source: Wikipedia, edited)