What's the story of magic rampage?

It is a story about a minion of a power hungry king. One day a powerful Warlock invaded the palace of the king. The guards couldn't stand against him. Few people survived in it. The king had gone previously by a portal to another dimension but know one knew it. The minion and the captain of the king's guard decided to find out the truth. It lead them to the dimension in which the king had gone. One of the person in that dimension discovered the true intention of the king. The king in reality by ripping out his own body was trying to become more powerful. He then captured someone else's body and again ripped it. He tried to stop the king by preventing him from taking the Lunar Maps, legendary artifacts that are needed to time travel. But he was too weak and failed. The King again bought the minion and himself to the palace. He asked the minion to detain the Warlock so that he could destroy the Warlock. He destroyed him and began to grow more powerful. In order to stop him the captain brought back the minion ten years after the castle invasion. The captain and some other people who had survived planned to stop the king by taking all the Lunar Maps and correct the timelines which the king had created. The minion in the story is you.