The story is about a boy named Marko. In his young age, he lost his mother. he was also going to die with his mother but she saved him but he went to a coma and now returned after a long time and now he knows the truth about him and his family and due to someone he is now in a very inappropriate place and also going to become one of the right-hand men. His father was the superior knight of Valhalla and he was the prince of the knights. But somehow the king of the universe is not anymore the king. And is taken by someone who is not appropriate for this. Now Marko and his companions are on their way to kick the intruder from the throne and make the king gain his throne back. But how will he do this? He was just woken from coma? He had no training at all? Will his raw strength and hard work help him succeed?

It is the story of a boy who time travels due to a tragedy and makes his own life good and takes place in his past and relives it. Kazuma was a full and depressed boy but now that he know about his past. He become intelligent and charming.

In an alternative timeline the demon lord went on a rampage and killed a lot of people who became a burden to him. A faithful soldier of the demon lord Albion didn't liked his ways for a long time but due to the power of demon lord he couldn't confront him. A boy named Kagami who was an ordinary boy lived in a different world was master of kendo but due to something in his past he quit the kendo and lived in depression. But due to something he changed everything and started his new given life.