Kayle a dragon that has became a samurai want to reach to the top of strength but she need to defeat someone if she want to became the strongest it you as i say you are the strongest being,in this world is get hating by the god and your clan has a duty to stop the ragnarok,the ragnarok will come as 3 or 5 year one time and repeating but when you get birth your Has became to hope of the humanity you killed all the god and have a title "God Killer" not like god killer as some of manga they just got the title because they strong like a god but you get that title because you actually killed a god whatever back to the main story kayle has come to fight you again it has repeat for a billion year...and do you know what she want as the fight? ***-Fight me! i swear this time i will win! if i win you will marry me!