Transmigrated Become Sukuna, but the host is Yukinoshita Yukino? - Chapter 152 - - Kenjaku

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.”

In the year 1257 of the Federation Calendar, Chen Pingchuan, who has crossed into a different world for three years, gets the Apocalyptic Wasteland Simulator.Through information obtained from the simulator, a sudden disaster will strike Spring City in a year. Accompanied by highly radioactive red rain, a type of mutated creature called Black Demon will be born.With the simulator, Chen is in a better position to survive, but he also wants to find out the secrets of the girl he meets in simulations.Simulator: [She left you a small bottle of liquid with an unknown effect and a note with just two short lines written on it.][Avoid the red rain!][Forget me!]

The tale of Oliver.
An orphan boy from a Mine, in 19th century Europe, filled with Magic.

Birth of the Biomancer:Mio was the worst healer in Tokyo. F-grade, dead weight—her party kept her around out of pity until they did the math and left her bleeding in a ruined cathedral.Something ancient was waiting there. It offered her a Class that devours its hosts—a path of power that claimed the lives of the three Biomancers who came before her. Mio said yes anyway. She’d already felt the sting of a slow death; what was one more monster in her veins?Now pain is currency, death is fuel, and the hunger grows with every kill. The Bureau wants a weapon. Her sister wants her home for dinner. Mio agreed to both.In a world of Systems and Dungeons, power isn't a gift; it's a trade. And Mio is finally ready to pay the price.════════════════════What This Is:[1] This is a progression fantasy with system elements, but the system serves the story, not the other way around. Expect meaningful numbers, not stat spam.[2] Romance is not the focus. Mio has bigger problems. But expect a slow-burn later down the line![3] The story gets dark, but it's earned. No grimdark for shock value.