While Others Cultivate, I Use My Multiverse System - Chapter 121: Meeting Sander

King of Harem, Pioneer of All, R-18 Story

My name is Mike Tyson. I was a normal dude that had an abnormal death. I was lucky enough to get reincarnated in another world.

This is earth, but alternate earth or real? I don't know. But I know that I was born with the fate of a protagonist. Unsuccessful in awakening my innate talent, I spend two years in my middle-school.

But this year, everything changed. I awakened something, and not just an innate ability but also a unique ability. That was the true start of my life.

A life that I feared became reality. My fate was in my hand, but the fate of my little dragon was in the hands of the system. Spreading the legs of women in bed, I found a new way to gain strength.

Heavenly Maidens, Supreme Fairies, shave that cave of yours. My little dragon will fly from one cave to another until it meets the destined cave.

Embracing the power given to me, I let the beast inside of my soul go wild. I was no longer restricted by anyone or anything.

The title does not represent me, I represent the title. Spreading the legs of hundred women, I will ascend to that title and become the one and only 'God of Sex'.

Standing in front of a creature with a dark face and red scales, I broadened my chest and asked “I have talent, looks, money, women, power, and little brother. What gives you the confidence to challenge me?”

Every little detail including name, identity, is fictional. They might be relatable but please don't relate them.

Special Tags- weak to strong, fast strength growth, adult, mature, Character Growth

(Read this book if you want to increase the size of your little brother)

Choi Hyun-seok, a heavyweight champion of the biggest mixed martial arts league on Earth and the one who was called the strongest had died.Afterwards, he was granted new life as a hero in another world.‘Wealth! Honor! Endless beauties at your fingertips!’With thoughts of such a dazzling future, the first thing that he saw when he came to this new world was a towering ox monster.The monster, who was the commander of the demon army, asked.“Hero? You’re saying you’re the hero?”“Uh…I think…?”And so, that was the start of hell.

Birth rates are decreasing. Hope is vanishing. The world has gone gray.Humanity, drifting in quiet collapse, receives an email.Every person on Earth. Simultaneously.The Aegis Mandate.Disguised as a cosmic aptitude test, it triggers The Incident of Separation—a global psychic cataclysm that erases identities, wipes memories, and divides all survivors into three factions: Law, Neutral, and Chaos. Overnight, cities become battlegrounds. Apartments become dungeons. Ordinary people become monsters—or the ones who hunt them.Ragnar Vhagar was just a loner university student. Now, thanks to a system he didn’t ask for, he’s a newly minted Demon King, locked in a crumbling apartment with goblins under his sofa and a glowing soul crystal next to his frozen peas. His new job? Build a deadly domain, defend it from invading “Heroes,” and somehow level up fast enough to not die.Alongside him is Isabelle Thorne, a razor-sharp warrior of few words and one very sharp sword. Their reluctant alliance, born in blood and snark, evolves into trust—and maybe something dangerously close to affection—as they rise together through the layers of the game-like world they’re trapped in.With each conquered domain and defeated boss, Ragnar realizes the truth: the dungeons aren’t meant to crown a winner. They’re meant to break the players. The Law faction wants control. The Chaos faction craves destruction. But Ragnar? He wants something they’re all too afraid to say out loud:Freedom.In the ruins of Kanta’s ogre stronghold, Ragnar and his misfit warband take their biggest step yet—claiming a kingdom, unifying a fractured system, and preparing for what comes next. The Heroes are watching. The gods are stirring. The world is watching a war.And somewhere deep beneath it all... Ragnar is rewriting the rules.

A world that turned into a game in an instant.In the midst of it all, I awakened an EX-rank ability.Devouring all kinds of rewards and corrupting every female.Harem | System | Hypnosis | Apocalypse