It is illegal to request or receive a brokerage fee.
Excessive debt can bring you great misery.

Loan may reduce your credit rating.
No early repayment fee.

Interest rate: 9% or less per year
(From February 08, 2018, new, renewal and extended loan agreements will apply.)
An example of the loan total cost is as follows:
Loan 9% of interest for 1,000,000 won for 12 months
Total repayment: 1,049,418 won (may vary depending on the loan product)
No incidental expenses other than the exercise or preservation of rights.