Who Is The Strongest Antagonist In 'Reincarnation: Seoul Station'S Necromancer'?

Blurb: ​They took everything from me. My husband faked his death, leaving me with $50 million in debt. My best friend stole my designs and my daughter, who now calls her "Mommy." They left me broken, scarred, and left for dead. ​But they made one mistake. ​When I wake up the day before my life was destroyed, I'm not the naive woman they remember. I have every detail of their betrayal, and this time, I’m not running from the storm. I am the storm. ​With the help of the man I should have never let go, I will turn their perfect plan into a nightmare. They think they’re building an empire. I'm going to burn it to the ground. Some debts can’t be paid in cash, only in ruin.

I opened my eyes and found myself back at the matchmaking event again. Grandpa pointed at seven jacked jocks and said, "Pick one. They've all been trained." Remembering how they had shared and humiliated me to death in my past life, I threw up on the spot. This time, I pointed at Grandpa's sworn enemy instead. "I want to marry that terminally ill guy who can't have children." Later, that powerful man wrapped an arm around my pregnant belly, while we watched them all go to prison with that spiteful woman.

Sheeran, a 16-year-old boy, lived until he was killed for a stupid reason. ( stupid reason & more in the prologue:v ) But it seems that fate had stored different things for him as after death, His soul transmigrated to another world inside a dead body of a boy with the same name and same facial features as him. He also found out that a mysterious black whirlpool seemed to be inside him and connected to his soul. After the short unfortunate first life, he starts living his second life with more suffering that he chooses himself to get stronger but with that also comes happiness he had never experienced. A smooth sailing second life of Sheeran starts with something mystical inside his body and other benefits of it that could make him stronger with some suffering. However...he didn't know that due to his soul ( That was supposed to return to the source of the universe after death but instead, it transmigrated by someone for some purpose and that caused an adverse effect like increasing misfortune on his soul ) The benefits he receives ultimately becomes the source of his second doom that is even worse than death. But...that's when the future revoked overlord is born.

As the news broadcast reported a random serial killing near my residential complex, I knew—I had been reborn once again. In my first life, my husband insisted on going out in the middle of a snowstorm to buy weapons for self-defense. I locked every door and window, waiting at home, anxiety clawing at my chest. I never imagined the killer could pick locks. Before I could even react, a blade plunged into me, and I died on the couch. In my second life, I didn't hesitate. I hid in a concealed storage room, holding my breath. But the door was still pulled open. A man wearing a rabbit mask stared straight at me. "Found you," he said. In my third life, I ran to the police station. I rushed inside and told the officer on duty that the killings weren't random—that the murderer was coming for me. They looked at me like I'd lost my mind. Then my husband arrived in a hurry and took me away. But the moment we reached our front door, a heavy hammer smashed into the back of my head. Through the blinding pain, I forced my eyes open, but I never saw who killed me. Now, staring at the grave expression on the news anchor's face, agony surged through every inch of my body. Rebirth isn't a reset. The damage accumulates—and sooner or later, it will torture me to death. Without hesitation, I walked into the kitchen and set a pot of oil to heat. And I waited… for the moment the lock began to turn.

In a drought-ravaged apocalypse, I kept our entire apartment block alive with my “watermaker” ability. But when I grew weak, my neighbors shattered my limbs and turned me into a living water source. Later, when raiders stormed in, they dragged me out to take the blade for them, only to realize that even my severed arms could still produce water. So, they shouted about “saving humanity,” then shoved me into the crowd and fled in the chaos. People rushed forward one after another, tearing at my flesh. But I didn’t die. What was left of me fell into the hands of a monster, and I was subjected to inhuman torment day after day. Ten years later, when the apocalypse finally ended, that monster tossed me into an incinerator. Only then did I die. When I opened my eyes again, I had returned to the moment I first awakened my ability, just as my neighbor knocked on the door, begging for water.

Like me, it seemed my younger sister was reborn. In our past life, she was obsessed with the golden boy of the elite circle. She would ditch classes, get into fights, and race through the streets at night all for him. In the end, she died for him in a storm and blamed me for all of it. After her rebirth, she manipulated our parents into transferring me to his class, notorious for being the worst in school. "Sis, this time, it’s your turn to get bullied by him. To fall for him. To suffer like I did." I just smiled. Coming back to life didn’t make her any smarter. Even if she lived a hundred lifetimes, she would never be a match for me.