It's a criminally underrated series, so much better than many Shounen Manhwa I read. Mostly in shounen manhwa mc gets power up so fast that fighting scenes and stories become repetitive and boring but in this manhwa, leveling up is so hard, all stages interesting and different from each other. I really love Mc who uses his head, he is strong and so smart. You can't predict what to happen, characters so good. Esp I'm so glad about female characters, they're not objects of fan service or for the harem, they're strong, and that helps the story so much. I strongly recommend ppl to read.It is more than level up type story, there are a lot different stories going in the behind, and there are still a lot of mysteries need to be solved