A Justiça do Diabo (2021)

Both MLs are both morally grey characters who don't mind "playing the bad guy" to get revenge for their loved ones, they both have tragic backstories and has their own little team to help them on their quest for revenge. They both work for the law, although Jang Do Han is a prosecutor while Kang Yo Han is a judge.

Both stories revolves around taking down corrupt officials and politicians, but deep down it's more about getting revenge for their loved ones.

THE BROMANCE is attractive just like The Devil Judge. The Merciless' main character is also well written he is not like Ga On. I think Ga On's character is not developing much throughout the series.
Also you'll like this if you like Vincenzo too.