The Strongest Dull Prince's Secret Battle for the Throne - Chapter 3: SS Rank Adventurer

She was once an heiress, but later her family went bankrupt, and her fiancé betrayed her. Besides, she had to bear the expensive medical expenses of her brother. Therefore, to regain everything, she decidedly married her ex's cousin in a deal. Initially, he was very aloof and didn't care about women at all, but he gradually fell in love with her, protecting her and supporting her...

When Cheng Guang woke up, he realized he had traversed to another world.He had thought his transmigrated identity would be the esteemed Princely Heir to the Duke, but he hadn’t expected an additional (pseudo-) in front of it.It wasn’t tragic, but it definitely wasn’t great either, it was just very helpless.Cheng Guang had thought that being able to be a pseudo-Princely Heir was the biggest cheat in his life, but to his surprise, he was also bound to a system.This system was even more of a scam!It seemed to have bound him three thousand years too early!It started by telling him he had advanced to the Heavenly Human Realm and instructed him to confront the Empress of Great Zhou, who was also in the Heavenly Human Realm.But he was just a small potato!However, wait a second, the Empress of Great Zhou, years later, seems to be just a pushover right now?Cheng Guang became resolute and confident again, I got this!!!

Zheng Tan somehow returns to the year 2003, turning into a black cat. Picked up from a rubbish heap by the Jiao family, he is given the name “Charcoal”, and so begins the life inside Professor Jiao’s family. Zheng Tan remembers that he was once a person, but currently his body is that of a cat. He has no way of speaking the human language, but can understand it, and even retains the thinking and IQ of a young 20 year old youth. Read along as he adapts to this new world, and somehow tumbles from a group brawl to catching a thief.

- Description from Novelupdates

Luo Feng was reborn back in his high school years. From the start, he acquired the Return On Investment System.

[Invest in this coffee shop and you will be able to open many branches in the future. It has an ROI of 100%.]

[Invest in Bitcoins and the price will skyrocket in the future. It has an ROI of 10,000%.]

[Invest in the cute girl who is the deskmate in class and she will become your wife in the future. It has an ROI of infinity.]

Luo Feng decisively chose to invest in his future wife.

…

Many years later, during a press conference, a reporter asked, “Mr. Luo, your White River Investment Company has surpassed Morgan Stanley and Goldman Sachs, becoming the most famous investment management company. In your opinion, what is the most successful investment you have made in your life?”

Luo Feng looked at his wife fondly as he replied, “Don’t ask me. I just live off my wife.”