User blog comment:B214/Volume 23 discussion blog/@comment-185.112.105.215-20170415033435/@comment-190.160.185.214-20170415172949

they were dragons with no regard for their own lifes, battling was everything for them, they would continue to search for the strongest until they ultimately died in battle....Apophis believed that his destiny was being killed in battle by a hero, in this case Issei, and Azi even cut his own lifepan using healing magic just for the sake of prolonging his fight with Vali, at the end they were born to battle, lived to battle, and could only accept death through battle