One Piece - I Am A Different Luffy! - Chapter 20 - 19 - Orange Town 4.

When he returned to the World of Martial Arts, the game was filled with blood and battles! Chen Kaixin had chased after the footsteps of the one emperor, two empresses, three princes, seven dukes, and thirteen aces for three years, but during the eve of the Sword Among Us tournament in Mount Hua, he was ambushed by evil bastards, and was killed so much that his level dropped to that of a newbie. He completely lost the chance to join the ranks of the powerful players in the game! In great disappointment, Kaixin quit the game and got drunk so that he could forget his sadness, but during that stormy night, Chen Kaixin found that he had actually dreamed for a total of three years, because when he woke up again, he woke up to three years ago, when he was still a student.

- Description from Novelupdates

[WARNING: MATURE CONTENT]

One day, Fang Jueyu was called into the study by his parents.Fang Father: “Son, you've turned 20 this year, and it's time to tell you some things!”Fang Jueyu: “What is it? You're not going to suddenly tell me you're a wealthy man, are you?”Fang Father is surprised: “You already know?”Fang Jueyu: “What? Really? I was just saying that.”Fang Father: “However, that's not the point. Today, I am going to pass on our family's heirloom that has been handed down from generation to generation to you!”From then on, Fang Jueyu's life underwent a dramatic change.What? You want to talk to me about antiques and calligraphy paintings? Do you want Wang Xizhi's calligraphy or Zheng Banqiao's paintings? Oh, right, Van Gogh even gifted my great-great-great-grandfather a painting!Why, you ask? Because it was my ancestors who funded their education!You want to talk to me about sports cars? Are you talking about Lamborghini, Ferrari, or the Bugatti Veyron? I hold shares in those companies, and I'm even the largest shareholder!What? Your family owns a mine? Sorry, but many of the gold and diamond mines in Africa are ours too!

This is a very interesting thing. It is obviously dim and black, but it can emit a golden light, which makes people deeply fascinated by it…

- Description from novelbuddy