Revenge Plots

The Glory - Very strong revenge plot. Matches your description.

My Secret Terrius - Is based on a revenge but it's also a light rom-com. But lots of suspense and intrigue.

Naked Fireman - Only 4 eps, short but good.

+1 The Glory and The King of Pigs.

Also these:

Again My Life  - has a bit of a fantasy element because he was killed and comes back to life.

Bloodhounds - A boxer's mother is trapped in a loan scam and so he and his friend try to get back at them.

Girl From Nowhere  (Thai) - revenge plot with a supernatural element

Military Prosecutor Doberman  - the FL becomes a military prosecutor for her revenge.

My Name  - a girl witnesses the murder of her father and plots to find the murderer and kill them.

Payback: Money and Power - revenge but involves grabbing money and power.

Reborn Rich - ML is betrayed and murdered and he miraculously is reborn into the family that he served.

Revenge of Others - Revenge against bullies and a murderer.

Taxi Driver - A team that help victims enact revenge on their perpetrators.

Why Her? - About a lawyer that decides to take on a fight for justice.

Also the currently airing Miraculous Brothers has a character enacting revenge.

Maybe Till the End of the Moon would also kind of fit as it starts with the female lead wanting to take revenge on the male lead for killing her family and her people.

"Money Flower".  Very, very good Kdrama, featuring an icy cool (but believably so) ML driven to revenge against his older, female benefactor. The relationship between these two characters by itself is a reason to watch, but the methodical way the ML goes about avenging his family is so good.