Simply must read! Our MC is just a typical deadbeat who is forced to redeem himself for his mistakes. Premise might sound boring but characters feel really alive, art is nice to the eye and story is consistent and immersive to boot! What else to ask for? Just go for it and read it!
On a more detailed part:
Story-
Everything might seem random at first, but the world is a lot more complicated than it seems, and the story is going to fully utilise it.
Characters-
Character development exists, greatly. Each action had some kind of consequence, and out character learn from them, suffer and grow.
Art-
Kim has nice art in all his stories, but this one by far is most comfortable for me to read. It feels warm and inviting. All tru all, manhwa is amazing and I really liked it.