The supporting character's harem is very normal - Chapter 515: I am the hero

Humanity was on the brink of destruction. Muyoung, an assassin from the Forest of Death, fell to his knees. There were corpses all around him. For years, he had worked for the Forest of Death and had finally been able to eradicate them. Now, he, himself, was about to die. He closed his eyes as he felt his heart stop beating.

2029 was supposed to be the year humanity moved forward.Instead, a failed military experiment tore open a gate to another dimension unleashing creatures that could shatter mountains with a single strike.From the wreckage, a new era began. Technology forged from energy crystals found beyond the gate and soldiers wielding beast infusions fuels humanity’s last defenses.Soldiers, mercenaries, and the desperate are sent to hunt the beasts... and one day, to face the terror that waits Beyond the Crimson Gate.But every step closer to the gate brings one truth into focus. What waits on the other side may not be killable.

In one moment, he was walking down the street with his little sister—In the next, he had traveled to the world of One Piece, carrying a system that could extract, record, and fuse genes to cultivate powerful lifeforms.Thus began a leisurely and carefree life in the most chaotic world imaginable.When bored, he’d snatch a bit of heavenly tribute meant for the Celestial Dragons.When curious, he’d raise a few cute kittens and bunnies just for fun.When restless, he’d wander through the territories of the most fearsome powers in the New World.Life is beautiful—so why bother taking anything seriously?

“You are sitted with the devil... and you are afraid of a demon:”Daxen, a brilliant but bad-minded young boy, finds himself in a parallel world where everything seems to be linked with havoc.At first, he thought he was dreaming, that his mind was playing tricks on him. But not until it had dawned on him.Growing up, Daxen believed the world belonged to the strong, because he had always been at the mercy of bullies. Constantly beaten, mocked, and pushed aside, he began to lose faith in kindness.Over time, his heart hardened. He stopped caring. He developed a cold, calculating mindset, one that thrived on revenge. Pain; once something he feared, became something he delivered.Especially to bullies.He started learning how to play smart, how to always pay back, how to get revenge in a cold way. His feelings for when someone is in pain died, since he now draws pleasure in giving pain to bullies.Mercy faded from his heart, replaced with a twisted satisfaction in seeing his tormentors suffer.But something had happened. He had been assessed and was picked to join a force to defend his world.How can someone as bad-minded as he is do that?Still, the choice was made. And now, Daxen must fight. Train. Endure brutal trials to grow stronger, to survive, to rank up and eventually, defend his world, and himself.But the path wasn’t easy. The trials were something else, merciless. The journey tested his very soul. It made him do things, think things, see things that weren’t sensible to any mere being.He had to slay what he never believed existed, to him they were bullies of the bullies and that was what he hated the most.But as he advanced, he changed. With each step he became a better version of what he was, a darker version, some might call it an omen, a bad one.For He became…Read to find out.