Just Turned Eighteen and Started College, Yet All the Big Shots Call Me Grand Ancestor

In his previous life, Lin Xuan helped many people rise to prominence and build vast families of their own. They all honored him with the title of Grandfather. Reborn into a new life, Lin Xuan awakens the [Settle Old Debts System]. As long as he finds the families he helped in his previous life and settles his ties with them, he can claim the System's ultimate reward. From the start, he conceals his identity and returns as an illegitimate son of the Lin family. The eldest Lin son, a business ace, is caught in a romantic crisis? No problem, Grandfather's here! Grandfather will drive away that fake, pitiful white lotus who's been playing the victim. The second Lin son, mixed up in the underworld, is being hunted by his enemies? No problem, Grandfather's here! Grandfather will help you secure the top spot as underworld boss. The youngest Lin daughter, a spirited girl, is being pestered relentlessly? No problem, Grandfather's here! Grandfather will fend off every sleazy scumbag for you. The three Lin siblings are stunned! Aren't you an illegitimate son? Why does our usually stern father kneel and serve you tea? Gradually, they discover that their eighteen-year-old Grandfather is far more than he seems: a mogul in showbiz, a titan of finance, a political leader, even the head of a rebel group that deals in arms. Why does every big shot call you Grandfather? Is this normal? This is definitely not normal!