black-market loan charging 50% interest every ten days
とごの利息で借りたら返済は不可能だ。
If you borrow at usurious rates, repayment is impossible.
とごの闇金融に手を出す人が後を絶たない。
People who resort to usurious underground lenders never cease.
とごの被害に遭ったら弁護士に相談すべきだ。
If you become a victim of usurious lending, you should consult a lawyer.