Study Monster Cultivation System - Chapter 308 - 307 highly upvoted answerer

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.

The Earth of the future is united under a single government, but not all things are well. The shape of the playing field may be changed, but the powerful still rule the weak.And those who do not conform with the rest of society are exiled to another world. A world that not even the technology of the future managed to tame.It should have been humanity's New World but ended up as nothing more than a penal colony. A place where the exiled are sent to die.Motivated by revenge, Magnus sets out on a quest to bring his own justice to his enemies. For that purpose, he is willing to go further than most others.But then he learns that if he truly wishes to change things, he can only find his answers beyond the gate.Having lived most of her life as an exile, Astra is a woman of few interests aside from survival and climbing the ranks of her clan.To achieve those goals, she certainly won't be squeamish when a chance literally falls into her lap, or will she?———————————————————————————————I am trying to go with a survival/“no modern tech” setting in this one. People from a technologically advanced society are thrown into a world where they can't maintain their tech. They are forced to rely on what the world provides where they have to make do with the limited resources they have and what little of their old technology is still working. Their gene manipulation allows them to have something akin to superpowers, but that doesn't help much against the monsters of their new world. Not sure yet whether sufficiently advanced technology will be discovered later on to count as magic.It turns more political between the various clans later on.

Wang Bin unexpectedly gained the ability to travel between the post-apocalyptic world and the real world. In the apocalypse, he organized a powerful team and continuously transported gold back to the real world.Using the gold from the apocalypse, Wang Bin built a commercial empire in the real world, eventually becoming the wealthiest person on Earth. His every word and action could influence the rise and fall of entire nations.At the same time, his development in the apocalypse was equally impressive.Through countless brutal battles, he ultimately established the largest and safest settlement in the dying apocalyptic world, making an extraordinary contribution to the survival of humanity.

When a special police officer Su Yi performed his mission, he was shot. He thought he was dead, but he didn’t expect to be born again.Reborn into a misbehaving female who already had a partner and had a bun (child), Su Yi had to live in this cruel orc world and later had a good impression of his own husband.