During a mission, I came into contact with an event that subverted the three views, and changed my life plan for this. I thought that I would be in contact with the event for a lifetime until I retired and died of old age. But by chance, I met him, and I found that, I seem to have come into contact with a more mysterious picture scroll. In the long history, under the waves of Taotao, there is such a group of special people. They have the ability that many people dream of, and even left behind many historical deeds. A hidden shadow. I will tell you the story about this group of them.