A Place in the Sun (2019)

In both the ML was the rightful heir to the conglomerate and they used their money making ability to get revenge on those who betrayed and destroyed their lives out of greed.

Mostly same kind of story
Male comes back to life
His girlfriend thinks he is dead
although she gets to know him when she saw him
Male lead knows his life is numbered
so he must do everything for his family that he couldn't to do when he was not there for his family
here is the plot also...........

Twelve years, after dying in a car accident, Sung Hae Sung(Yeo jin goo) suddenly appears alive and well not having aged a day. With the help of his friends and his childhood love Jong Won, Hae Sung sets out to make things right for his family and solve the mysteries surrounding his death and resurrection

A character comes « back to life » and lives near their loved one without him/her knowing it is actually his/her loved one (does it make sense?)