Genghis khan's Acolyte- A Rising Havoc

Arnold a boy from countryside came to the capital city of Uqbar with his childhood friend but was sold as a slave by him. While his childhood friend got massive achievements, he spent his life on streets. He swore to kill him but he couldn’t do so in his circumstances. Luckily, he stumbled on a shop and stole a book from there thinking that he might earn something by selling it, that book was about Genghis Khan. Out of curiosity from the unfamiliar name, he opened it and a person with a certain intimidation capable of killing a tiger came out of it. He was scared but he noticed that it was a soul. After learning about Genghis Khan, he smirked. He knew that the most fortunate star was now with him and his enemy will soon be taken revenge against.

This is a story about a boy raised by the most cruel king on Earth who usurped havoc in his world.