The God of Revenge's Ledger

A immensely powerful tycoon hides his real identity and takes a place as a live-in son-in-law in a family that has long held a grudge against him. His reasons run deep, rooted in an old wrong he has never forgotten and a debt that must finally be repaid. Living under the same roof as those who wronged him, he must keep his secret while quietly settling the score, one careful move at a time.