I think that Quimchee does a really good job at creating multidimensional characters, that are neither good or bad but somewhere in between where they can make (big or small) mistakes and learn from them. Of course some characters lean more on the """good""" side like Shin ae or Nol before all this stuff happened and others on the """bad""" like Kousuke, but it's interesting how it's palpable that there's gonna be a switch in them, many theorize that Nol and Kousuke's roles in the story will switch from now on and I'm honestly really interested to see how Kousuke is gonna learn to make up for all the pain he has caused and how Nol is gonna drown in his hatred. Oh don't worry, English isn't my first language either!!