While the rich chase the best positions in companies, the downtrodden try to survive. This series focuses on the latter screaming from the depths of humanity.
Screaming and being heard.
JiAn is a young outcast ready to do anything to get out of debts imposed on her by creditors, who conveniently "forgot" that she had no duty to accept the debt.
While working in a company she experiences what had eluded her until then: falling for someone.
Towards the end, DongHoon locates JiAn on the run to make sure she won't have to testify and reveal humiliating details in the life of DongHoon and his wife. DH locates her and enters's JiAn's small room. The scene is akin to a human feeling like a worm when Divine Grace presents Itself (I am unworthy, don't come close to me ...). She got saved!
The wasn't the only one, who bettered her life. Her paralytic and mute grandma died in peace, her accomplice GiBom escaped prosecution, her abuser KwangIl redeemed himself, couples were saved, people found jobs, ...
Watch the series, and you'll want to watch it all over again.