How Does Yoo Ilhan Become Overpowered In 'Everyone Else Is A Returnee'?

My sister smiled while I died. As I lay helpless in a hospital bed, I listened to my family talk about my funeral, my inheritance, and the fortune they would gain once my heart stopped beating. My husband never came to see me. My parents called my death useful. And my sister, the person I trusted most, stole the wedding ring from my finger before turning off my life support. Then I died. But instead of staying dead, I woke up three years in the past. This time, I remember everything. I remember my husband who treated me like a burden. My parents who used me as a wallet. And my sister who smiled while I took my last breath. And this time, I refuse to be their victim. My first move is simple: divorce my cold, emotionless husband, Elias. I expect him to sign the papers like he always ignored me. Instead, he rips them apart. The man who once couldn’t stand my touch suddenly pins me against his desk, his eyes dark with obsession. “You spent years begging for my love,” Elias growls. “Now that I finally want you, you think I’ll let you leave?.” His grip tightens on my waist. “Over my dead body.”

On the day I return to my home to reunite with my actual family, Melanie Stewart, the fake heiress, shows up in front of me. Her neck is completely riddled with hickeys. Instantly, countless live comments appear in the air around me. "Poor Yvonne! She thought she could start living a comfortable and lavish life now that she had been accepted by her actual family. Little does she know that Melanie has already formed a pact with the transfer system!" "Melanie is a loose woman by nature, and she loves sleeping with countless men. After getting bound to the system, the children she gets pregnant with will be transferred into Yvonne's womb instead." "Yvonne will proceed to give birth to dozens of bastard children, thus humiliating her family to no end. She ends up getting cast out of her family by her own parents!" "The truth is, there's a solution to this situation. Yvonne can just remove her uterus so that the system won't work at all. Alas, she doesn't know about that." I stop in my tracks at that moment. In my previous life, I had believed the live comments. As such, I traveled to a hospital to get my uterus removed overnight. But the next day, Melanie blew the whistle on me to my parents. She claimed that I wanted to get rid of my uterus in order to cut down the risks completely for the sake of having as much fun as I wanted with other men. My parents were completely disappointed in me. My fiance refused to enter a marriage alliance with me, a woman who could no longer give birth, as well. In the end, I died from a post-surgical infection. However, Melanie obtained everything that was supposed to be mine, to begin with. That was how she became successful in life. When I open my eyes again, I realize I've returned to the day I'm bound to reunite with my family.

At my 20th birthday banquet, I am to sign and receive the ten-billion-dollar inheritance left to me by my mother. My half-sister, Samantha Hatfield, and Howard Daley, her husband, who is also a secretary, eagerly urge me to sign the document. In my previous life, they trick me into signing the very same agreement, and the inheritance somehow becomes theirs. When I try to fight back, no one listens to me. Together, they have me confined to a sanatorium, where I spend the rest of my life drugged, imprisoned, and forgotten. But this time, their scheme is going to fail—I have returned with memories of what happens from the past life. Under their confident, expectant gazes, I pick up the pen. However, I do not pick it up to sign. I raise my hand and slash the pen's tip across Howard's face. As he lets out a terrified scream, I tear the agreement into pieces in front of all the guests and hurl the paper scraps at them. I say coldly, "My mother left all this to me. What makes you two heartless parasites think you're worthy of laying even one finger on it?"

On my wedding day, Yuna Shaw, the girl my parents had sponsored blocked the door to my room, just as lines of text began scrolling across my vision. [Oh my god, is the female lead really going to marry that golden heir? He’s a psychopath. He likes cutting people into pieces!] [The female lead’s such an idiot. The match Yuna arranged for her is the smarter choice.] [Switching marriages with Yuna is the only way to survive!] In my previous life, after reading those messages, I begged to call off the engagement. Yuna insisted on repaying my family’s kindness by marrying in my place. I ended up marrying the construction foreman she had chosen. After the wedding, my mother-in-law made my life miserable, and my husband abused me. I ran back to my parents for help, only to be slapped repeatedly by Yuna when she returned home. “Still think you’re some rich young lady? Running home the moment things get hard? Someone needs to knock that out of you!” Even my once-loving parents turned cold and threw me out. “You walked out that door as someone else’s wife. What happens to you now is none of our concern.” In the end, I was tortured to death by my husband. Only after I died did I realize it had all been Yuna’s scheme. Now she stood in front of me again, her eyes sharp with calculation. I shoved her aside. “You think you’re worthy of marrying in my place?”

The day I go into labor, my husband's student, Yasmin Holden, storms off in a rage. She climbs the mountains alone while heavily pregnant. For the next three days and nights, my husband disappears to look for her. Meanwhile, I suffer a difficult labor and hemorrhage badly. I'm rushed into the ICU. When I finally wake up, the doctor hands my husband a critical condition notice. He hands me divorce papers. "Yasmin is my most promising student. I can't let her do anything foolish. You're about to be a mother, so you need to be strong!" In my last life, I refused to sign. As soon as I left the maternity ward, I reported their affair to the university. Yasmin lost her graduate school recommendation and was torn apart by public scandal. In front of me, she slit her own throat. By the time my husband arrived, Yasmin was already gone—along with the baby. He quietly handled her funeral and said nothing. Then, he returned to me as if nothing had happened. I thought that meant I was finally going to have a happy ending. But one day, he drove our car off a cliff with me and our daughter inside. That day was Yasmin's death anniversary. When I open my eyes again, I'm back on the day I give birth.

She bore scars that never cease to reopen from the pains she'd passed through, in the hands of her stepmother and stepsister. Her heart crashed again and her nightmare reawakened when she had an unforgettable nightstand and got pregnant by her step sister's fiance. As a result, she got trapped in violent, loveless marriage to him. However, an escape in a single day causes her eagle to rise into power and years later she returns home, ready to go on a journey of payback to everyone who had caused her pains. Now, she's enraged by the cold determination to get revenge