Revenge Law Firm is a Manga/Manhwa/Manhua in (English/Raw) language, Adventure series, english chapters have been translated and you can read them here.
A prodigious young man who was robbed of everything in the name of the law. The demon who murdered his father, Yang Da-gon, has become the chairman of a global automotive company, competing with Tesla… What is taken by law is taken back by law! Yoon Hae-sung, who became a lawyer, starts gathering suspicious figures. Can a small law firm with just two employees bring down the formidable Yang Da-gon who controls Korea?