MTL - Rebirth 90s: Sweetheart Cub - Chapter 1 Hell mode at the start?

Growing up in a facility that turned children into weapons, Subject 42 never knew freedom; only survival.So when a strange creepy entity offered him a second chance in another world in exchange for one mysterious task, he took it. Even if that meant living in a world that was drenched in curses, ruled by ancient gods, and shaped by powers no mortal should touch.Reborn as a Moon Elf, a being of myth and moonlight, he finally thought he could live the life he was denied.But the task he completed set something in motion. Something that he couldn't outrun.Witness, as his fate twists and turns, as Noctis moves through this strange world in search of a respite...

[Regressed successfully!]Zick lifted his eyelids, revealing two dull eyes. A grand room filled with medical appliances was reflected on his pupil.The piercing pain originating from the abdomen made Zick slowly accept the reality.He had returned 10 years back in the past!The very moment from when Zick began to lose everything.[Destiny system has been activated. Get closer to people with strong destiny and strengthen your own destiny!][Sub-function: shall be unlocked soon!]After taking a look at the interface, Zick closed his eyes.“First…I should repay that chick for this wonderful gift.” Zick looked at the bandages on his waist.......{Additional tags: Age regression, Evil protagonist, cold female leads, Academy, evil organizations, conquering, war.}

The King of Hell sentences you to death by midnight, but I can ensure that you live past morning.

The young man, Qin Lang, received the inheritance of a poison school by chance. He uses poison to kill people, uses poison to save people and he uses poison to chase beauties. With body of ancient extinct poison and a body of a martial artist, he walks around the city, and wanders around in the underworld.

- Description from Novelupdates

The technology fanatic Huo Tian from the future world died because of a research accident and transmigrated into the body of a fake rich daughter from a wealthy family.

Before the real daughter of the family came back, she was the treasure of the family, and everyone treated her like a princess. After the real daughter returned, her status plummeted, and they treated her as an outsider.

Living in a wealthy family that valued blood relations the most, Huo Tian, an unrelated outsider, was given a hard time. Everyone hated and despised her. Leaving behind a letter of severance, Huo Tian left the Huo Family on her own accord without any lingering reluctance for her once luxurious life.

She started a new life with the original Huo Tian’s biological mother and uncle, who had been abandoned by the Huo Family’s real rich daughter. She started a business from scratch.

With her understanding of the future world and her grasp of futuristic technology, Huo Tian quickly became famous in the business circle and established a research company that was renowned throughout the country. All the researches from her company were ten years more advanced than everywhere else in the world. With every research published, the whole world would be taken aback and impressed by how miraculous it was.

As time passed, Huo Tian became increasingly successful. Just as she was getting used to being called a fake rich daughter, the secret that her biological mother hid was out of the bag—Huo Tian’s biological father was the head of the noblest and the most powerful wealthy family at an international level, the Xi Family.

Compared to the Xi Family, the Huo Family was nothing but insignificant. The fake rich daughter in everyone’s eyes and the joke among the wealthy circle suddenly became a real rich daughter of the most influential family. Moreover, the head of the Xi Family seemed to be spoiling his long-lost daughter to the heavens...