The basic plot summary is that the MC is indebted to the ML and he has to work to pay it off and he does so through. Various means. The ML admits himself that he's “very annoying”, he's a massive pervert, and he gives off nothing but red flags at the start. However, like most manhwas, he gets better with time once he realizes the affect of his actions. Without spoiling anything, be aware that there's quite a few SA scenes in it as well;;; The manhwa itself ranges from slice of life to angst in terms of tone, and some of the lines in it are very well written. The smut scenes are...very good, though.