Debtor

A Debtor (Japanese: 負債者) is a label given by the Takasato Group to certain people in Shinkomi.

Poverty is widespread in Shinkomi, and it is not uncommon for people to borrow large sums of money. Those who are unable to pay their debts are hounded mercilessly by the group as a "debtor".

Chips & Watchtower
A chip called a "web tag" (ウェブタグ) is forcibly implanted in the necks of the "debtors" who accumulated debt before they are repaid or huge amounts of debt.

The debtors who have been embedded with the web tags will have their activities monitored by a watchtower (監視塔) standing in the middle of Shinkomi.

They won't be able to leave Shinkomi until they have finished paying off their debts.

If they try to force their way out, they will be hunted down and shot dead without question. It seems unprofitable at first for the clan to kill someone with unpaid debts. However, the corpse will also be worth a certain amount of money.

Ornaments
According to Inada, debtors who are unable to pay back their debts will be further labeled as an "Ornament" (置物).

The "ornaments" are retrieved by "cleaners" (掃除屋) and used for some other purpose.

There is an unknown "cleaner" named "Dish House" (皿屋). The name sounds so unusual that even Inada himself wonders about it.