For all of the bad things one could say of this manhwa, I have to acknowledge the design of the main character... well, barring the really shitty clothing designs for everyone, not just him. He looks like an adult. Too many stories have their 20+ year old protagonists looking like children, this manhwa somehow did the impossible and made their adult protagonist actually look like an adult. A large part of it is definitely the sideburns, it's a small detail that makes him look much more mature and I can at least appreciate that.