Debt Repayment/Gangsters

Bloodhounds  - one of the MLs's mother is scammed by loan sharks so he tries to get jobs to pay off the loan.

Twenty-Five Twenty-One  -ML's family goes bankrupt and his father's employees target ML for the  money his father owes them.

Squid Game - +1 ML is debt-ridden and a gambler.

11 Left  - short series, ML is a gambler and has gangsters after him for money he owes.

The Sound of Magic  - +1 Gangsters go after the FL.