MTL - History’s Number 1 Founder - ~ 1356. The claws can't stretch out too!

Warning: There will be a lot of explicit content. No one under +18 allowed.---------“Extremely Masculine Energy Physique, meets the host conditions, the crooked system is officially activated.”Walker who returned to his village unexpectedly receives a system.But something is not right, the system is very lus...[Today's task requires the host to vent his lust before dawn.][Complete the task, officially enter the extraordinary realm, and have the strongest practice method generated by the system.][If the task fails, you will suffer from severe impotence and will never get an erection for the rest of your life.]“Fuck...”

Rei just wanted to read novels in peace, no girlfriends, no drama, no accidental death by divine lightning meant for a cockroach…But for now, he is the son of a powerful duke, reincarnated into a fantasy world full of magic, monsters—and dangerously obsessed women.They were childhood friends of that duke son. They all are sweet noble girls. One is emperor’s daughter and one is my older sister. Now they’re grown up… and they all want one thing.And that thing is Rei.Welcome to a world where love means stalking, loyalty means stabbing your rivals, and marriage proposals come with blood pacts and fireballs and even my system mocks me. Rei fiancées battle each other daily and his life is a romantic comedy… except it’s also a warzone.Oh, and his final mission is marry the Demon Queen. A literal succubus overlord trying to conquer the world.Somebody please help him. In a realm of swords, sorcery, and yandere chaos. So, he can find peace or at least keep his limbs attached.

Beneath the peaceful façade of the modern world, an undercurrent of shocking crimes roils in the underbelly of society.

The Universe is collapsing, and the realms are merging. To ensure humanity's survival, the heavens blessed the race with [talents] but that is far from enough. Only the gatekeeper can return the balance and stop the collapse, but why does it have to me?If the heavens think they can dictate my fate, I will make them pay the ultimate price...This soul will not be controlled...This soul will not be manipulated...I will cover the heavens with one hand!