Synopsis

The protagonist is cornered by loan sharks demanding repayment for his accumulated debts, including daily loans and interest. They use a mana-draining technique, 'Wall of Iron', that not only amplifies damage taken as 'debt' but leaves him mana-depleted, leading to 'mana freezing.' Despite the immense pressure, the protagonist manages to temporarily postpone the collection with an emergency potion and his knowledge of the Wall of Iron skill. He then wakes up in a strange place, now owing more due to being overdue from the loan.