he had to pay his debt did you read carefully the Manhw?
uuhhh.. he did??? but the boss wants him to suffer and read chapter 6 again
i think the debt that he need to pay is something more bigger? i dont know i think we will find out in the next chapter because its still have a 11 chapters lets just wait
literally..
I don't think the debt is actual money but something bigger. Keep in mind that we know nothing about the back story of any of the characters
FACT:>
MAYBE HIS MOTHER DID SOMETHING TO THE BOSS?OR SOMETHING
Why didn't he just masturbate then use his cum as a living instead of getting involved into that boss and those old perverts?