I believe that this game is an artistic masterpiece.
On the first playthrough when I woke up with amnesia, I simply played a cop with amnesia in all of my responses. It was goofy, I annoyed Kim for fun, I beat the game, etc.
On the second playthrough, I chose all of the dialogue options that honestly explained how the character became an alcoholic. It changed the vibe of the whole game to somber, and I was fascinated that the relationship with Kim felt different. It also felt natural to explore all of the lore and sidequests of the game involving the pale in this mood.
And then I went on a completionist binge and found some great social commentary in the "high-net-worth individual" sections.