Dimensional Sovereign

This is a Korean light novel and is the best manga to read. There are fantasy, adventure. The content of the story revolves around the main character named Kang-Jun – a poor student who lives a boring life with nothing interesting. Suddenly one day, while sleeping in his small dorm room, he came across a dead body under the bed. While startled, the corpse opened its mouth to speak. It comes here as the representative for Hwanmong – a distant, mysterious space that gives Hwanmong’s power to him. Kang-Jun assumed that if he kills a monster in his dreams, his level will increase in reality. His house has in fact become a base in a dream. A dimensional strategy RPG where reality and dreams are linked! Make money and become stronger! Now, he will rule the entire world. A thrilling and mysterious adventure awaits Kang-Jun ahead, how will he go through it?