Emperor's Castle
Popular manhwa serial "Emperor's Castle" was developed by Kwon Yeul Hee. That is one of the best gangster manhwa. The action of the novel takes place in the same-named virtual reality game, in which competitors compete to become the most powerful person and win the title of emperor. Ray, the main character, is a young guy who is transferred into this virtual world and must overcome its difficulties in order to live and prosper there.
As the plot develops, Ray interacts with a number of individuals, including other gamers, and learns the truths and plots underlying the creation of the game. To become stronger and live, he must fight off formidable foes, make risky decisions, and face his own shortcomings. The manhwa is renowned for its quick-moving action, complex storyline, and well-rounded characters. It has a sizable fan base in South Korea and has been translated into a number of languages for readers outside of South Korea. "Emperor's Castle" is absolutely worth reading if you like novels with complicated characters, action, and virtual reality gaming themes.
Writer/illustrator: Kwon Yeul Hee
Chapters: 41
Read here: https://www.anime-planet.com/manga/emperors-castle