What Is The Plot Of 4321 A Novel Based On The Anime?

The end of the world was upon us, but there weren't enough spots for evacuation. The roars of the zombies echoed in my ears as my fiancé, Oliver, gritted his teeth and pulled me onto the rescue vehicle—securing the last available seat. I arrived safely at the survivor base. Lina, his first love, did not. The zombies tore her apart. Oliver still went through with our marriage, but I never expected that he had only done so to make me suffer. In his eyes, I was the one who had killed Lina. If she had to endure such agony, then I should, too. For five years, he hated me. My life was worse than that of a stray dog scavenging for food on the street. On the day my divorce was finalized, he kidnapped me, dragged me into the wilderness, and wrapped his fingers around my throat. Then, he threw us both into the swarm of the undead. When I opened my eyes again, I was somehow reborn on the day the apocalypse began. The rescue team was shouting impatiently, "One more! We have room for one more—hurry!" I turned to Oliver, watching his hesitation. Then, with a quiet smile, I took a step back and let someone else have the last seat.

The cocktail hour had just ended when I picked up a video call in the bridal suite. It was Ethan, three years from now. By then, time‑travel tech had matured enough to let him contact me three years into the past. After enough specific details, I finally believed it. The man on the screen really was Ethan, three years older. I rubbed my aching ankle and pouted at him through the screen. "Ethan, smiling at all these guests is exhausting. But the second I remember I actually married you today, I'm happy all over again." "We're still happy three years from now, right?" He was leaning back against a headboard, and he didn't answer. His face was flat and unreadable. Then I heard it: a woman's voice from his end, low and breathy, asking to be kissed. I froze for a second, then covered my mouth and laughed. "Is that future me? In broad daylight? Get a room." Ethan turned the camera into the bed. My maid of honor was lying there, naked, sprawled across his chest. Her body was covered in hickeys. He looked straight at me as I started to break, and his voice didn't shift at all. "As soon as the reception ended, I told you I had a client meeting. I went to her room instead." "Jo, now you know what's coming. The guests haven't gone home yet. If you want a divorce tonight, you can have one. Up to you."

A serial killer targeted me. My sister-in-law was assaulted and murdered while trying to save me. Not only did I refuse to call the police, I pushed my father-in-law and mother-in-law down a flight of stairs when they came to help. I even helped the killer destroy the evidence. When my husband learned that his entire family got killed, he broke down in tears. He grabbed me by the collar and demanded, "Why? Why would you do this?" I deliberately waved photographs of his family's gruesome deaths in front of him and burst into laughter. "Why?" I sneered. "Because they deserved it." My parents begged me to cooperate so I wouldn't be sentenced to death. Instead, I publicly severed all ties with them. Meanwhile, the murderer who escaped justice struck again, claiming another victim. As public outrage reached its peak, I was selected for the Memory Extraction Program. Before the sentence was carried out, my husband asked me one final time, "The Memory Extraction System is still a prototype. You could die during the procedure. "Tell us the truth now, and there's still a chance to make things right." I slowly raised my head to look at him. "You're not getting a single word out of me." The crowd instantly erupted. People shouted that a worthless life like mine deserved to die. But when my memories were finally extracted, they were the ones crying and begging someone to save me.

Born with angelic blood, Lixue has lived her entire life bound to a prophecy she never chose. Raised in the countryside among a family who shared her celestial heritage, she was sent to Heaven at the age of seven to serve the Father and awaken the powers hidden within her soul. But a single night of tragedy shattered her peaceful life—demons invaded their ancestral mansion, and in the battle that followed, Lixue lost both her mother and her brother. From that moment on, her heart closed itself to the mortal world. Haunted by loss and unable to accept death, Lixue disappears into the Philippines, working as a secret agent for her godfather’s underground organization. Her latest mission seems simple: protect Shuji Liao, a world-renowned model, from an unknown stalker. To stay close, she hides her true identity and lives under the same roof as Shuji and his father. But as Lixue investigates, she uncovers a far darker truth—Shuji’s family is entangled in a powerful criminal syndicate that threatens both the mortal and supernatural realms. Shuji, raised between two countries and burdened by a fractured family, finds his once-stable life unraveling. A mysterious incident alters his heart, pulling him away from his girlfriend and toward the woman sworn only to protect him. What begins as duty slowly turns into forbidden love. Unbeknownst to Shuji, a single kiss seals their fate. The prophecy awakens, revealing its cruel demand: Lixue must love Shuji and bear a child destined to save the world from demons, devils, and ancient evils that walk the Earth. But salvation always comes at a price. After their child is born, Lixue vanishes—erased like a dream at dawn—leaving behind a son, a broken lover, and a world saved by a sacrifice no one will ever forget.

In the third year after my death, the one who remained faithfully by my wife's side was still the bionic robot I had painstakingly designed. It looked exactly like me and carried within it every detail of my mannerisms, speech, and habits. The only difference was that it never lost its temper with her. Because of that, my wife never sensed anything amiss. Yet each night, she brought home a different man, deliberately testing "me," desperate to see the wild jealousy and rage I once wore so vividly. Then, one day, her childhood sweetheart and first love, shoved "me" off the balcony. It was only then, in her horror, that my wife realized… "I" didn't bleed.

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.