My Billionaire Great-Grandfather is 18

The Story

An eighty-year-old business titan and war hero wakes up trapped in the body of an eighteen-year-old loser. His aging daughter addresses him as Father, while an icy female CEO kneels before him and a top star pursues his attention. He punches down the scumbag who cheated him and kicks the family traitor to the ground. The legend reclaims his family's glory through sheer force and authority.