The Journey of the Overlord

The strongest demon king who has been crusaded, the human being crusaded will finally test. Reborn again at this time. For a certain goal in mind. Return to the box court! Said, use all your energy. Say, do your best. Said, exhausting my bravery--try it into a shining sword that runs through my chest. However, the trial is still over. As the final trial, what should I do now.