Based on the Naver Webtoon of the same name by Jeong Chan, the series follows the story of a young boxer who teams up with a delinquent and a moneylender to fight against a loan shark organization.

However, his mother falls prey to Smile Capital, a ruthless loan shark organization led by Kim Myeong-gil.

Desperate to save his mother from their clutches, Geon-woo reluctantly accepts help from Choi Tae-ho, a benevolent moneylender with his own complex history.

They delve into the murky underworld of debt collection, facing off against ruthless enforcers and navigating the moral gray areas of their chosen path.

[10] On January 16, 2024, Netflix Korea confirmed the production of the series' second season with Woo Do-hwan and Lee Sang-yi reprising their respective roles.