I put in too much effort to calculate how much he could potentially make. So, if he made that much money and had an average of a 34.4 hour work week, along with working for 1 whole year without any break or holiday off, he could potentially make over 300k usd or over 300 million won. Of course before tax. Basically well above the middle class average. I know this is a manwha and its all for fun but I like thinking of if this was real. Personally I would honestly save the item until: 1 I'm bored of my class and 2 if I'm so financially stable that changing doesn't hurt.