With people finding this page here, one thing about this manwha is that IT IS NOT A SOLO LEVELING COPY.
1. The fact that the art style is Korean and solo leveling-like does not mean it is a clone.
2. Similar story line or aspects (monsters + dungeons + rpg element) does not mean it is copy; there have been numerous similar stories and comics with the same elements, including fantasy ones in korea, that are like Solo Leveling.
Also take note that an author's culture of origin makes a big impact on how he handles sub-plots and ideals. The kind of trafficking, betrayal, or being an under-paid struggling employee plot has been represented in other Korean comics.
Solo Leveling is just one of first manwhas for many being introduced that are unique and thrilling, thus, stop degrading another's work on such a basis. (comparing one great recent work to every other one, it's like your mother making fun of you for not being as popular and rich as the other guy. Doesn't that make things less enjoyable?)