Responses
The ML is actually older than the MC. On chapter 8, the MC though that the ML was a 18, that's why he told the ML to call him hyung.
When in reality, the ML is a year older than the MC. I remember correctly he's either 23/24? I don't remember lol. They're both highschool dropouts that came to finish highschool.

I have a question, are they the same age? Because in the beginning the friends said that the ML is also the same age as the MC. But the ML agrees when the MC tells him that he’s older. So is he lying and they are the same age?