I Will Raise This Family to Greatness

Where did my perfect body go? 183cm tall, 75kg, and able to lift 500 pounds. How did I end up as this tiny creature?!

I, Jeon Seongguk, was the king of Samjeon Group, a global corporation. I died suddenly from a heart attack. Not only did I collapse on the best day of my life, but I've become a baby in a poor household!!! And why is this house so small?! Why are my parents so young?! Assessing the situation, I realize these young newlyweds living in a studio apartment are my parents in this life. To think that I, the great Jeon Seongguk, born with a diamond spoon in my mouth, would restart life in this shabby one-room apartment... But there's no need to worry. I'm Jeon Seongguk, who's been through thick and thin and (almost) became the Chairman of Samjeon Group! The family's poor? Then I'll turn them into a chaebol!