Cubic (2014)

Same situation where the dad pays off his debt using his daughter.

they both had girls who were sold off by their family to repay debt owed. Cubic the man was a mafia in hong kong.

Although the settings might be a bit different both the lakorns have an arranged marriage angle where the male lead is set to marry the female leads sister but through a twist of fate (where the sister runs away) the FL ends up being a replacement bride.

They are both about Thai girls who are kidnapped by Hong Kong Mafia because of their father's mistakes. Both girls are rather feisty as well.

In both dramas, the female lead is still in high school and falls in love with a strict male lead who is older and a mentor in their life who teaches them necessary behavioural traits and mannerisms along the journey. Also, it is a slow burn romance full of comedy and unsaid feelings with just actions justifying their love. :)

Cubic has the same tags & same theme as well. Such as: Mafia, Older man/younger woman, strong female lead.

Those who loved Cubic will love this drama too
The Ml in both dramas are lonely wolves and sth shady about their buisness
Both shelter the girl despite being used
Calm Man in both
The girl is miss sunshine in both

-both dramas revolve around mafia
-both females have unique characters
-both males are charming and powerful in a manner
-both dramas have romance and comedy

Both of these dramas have a Mafia setting :)

Both involved mafia story of the chinese family and the fight of the gang to become the most powerful mafia. There is love story in both series