Married First, Loved Later : A Flash Marriage with My Ex's 'Uncle' - Chapter 323: Collaboration

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

People called him a genius—but Agares never believed it.Tired of expectations, he abandoned everything to live an ordinary life, working just to survive in a cruel world.But fate had other plans.A sudden transmigration took Agares into a world of swords and sorcery—a land ravaged by demons, ruled by power, and merciless to the weak.To his shock, he awakens as one of the Chosen Heroes. Sounds like a dream come true?Wrong.“That's a cursed job!”“He's no hero—he's a demon in disguise!”“Kill him! For the sake of the world!”[DING! Congratulations, you have obtained a Job.][Name: Agares][Job: Saber]Hunted by the empire he was meant to protect, feared for the power he never asked for, Agares finds himself branded a threat to humanity. All because of a job he didn’t choose.Just as the noose tightens, a red-eyed woman named Liel offers him a different path:“You were born to be more than their hero.”“The empire betrayed you. Humanity rejected you. Even nature turns away.”“Why not embrace what they fear —and become the successor of the Demon Emperor?”Now, Agares has a choice: run, or rise.This is the beginning of his war.A war not just for survival —but for vengeance.

Ronnie, a college student with a boring life has everything around him change when his whole world is turned upside down by a woman he accidentally summons while trying to summon a magical familiar as a game.His peaceful and tranquil days are disrupted as he tries to help her fit into human society while also searching for a way to break their bond.Hell further breaks loose when he discovers that his familiar is indeed the demon queen and mysterious forces start trying to eliminate him for reasons unknown.He struggles to protect himself, adjusting to having a demon queen in his life, and understanding his growing feelings for her.

Betrayed. Ridiculed. Killed.That was my past life.I trusted the wrong people, and they buried me for it. But fate wasn’t done with me yet. When I opened my eyes again, it wasn’t in my old body—it was in a world overrun by the undead. And this time, I was one of them.A fucking zombie!But I’m not like the others. I think. I feel. I remember.What’s this voice in my head?[Welcome to the Silent Requiem System!]The system feeds me power, unlocking missions and skill buried within this body. I have one goal: rise in rank, take control, and make sure no one ever tramples me again.The humans I move with have no idea what I really am. To them, I’m just another survivor, clawing my way to the top. But in battle, I use my abilities in secret—manipulating the undead, eliminating threats, and turning every fight in my favor.But rumors are spreading. There’s talk of an undead hiding among them, unseen and unstoppable. If they find out the truth, they’ll hunt me down like a monster.And my past? It’s here too. The people who betrayed me in my last life are standing right beside me, unaware of who I am. But I remember them. They turned on me once—I won’t give them the chance to do it again.Then there’s him. The commander of the city, sharp-eyed and ruthless. He’s watching me too closely, asking too many questions. If he figures out the truth, I’ll have to make a choice: eliminate him, outplay him… or pull him into my trap before he can destroy me.Because in this world, power is the only thing that matters. And this time, I refuse to be at the bottom.***“How did you survive when everyone else died?”I guess death just didn’t want me.“Why do the zombies ignore you?”Maybe I just have a face they don’t like.“You were just a nobody yesterday—how are you suddenly so strong?”Hard work, luck… and a little bit of hex.“Why do I feel like I've seen you somewhere before?”Déjà vu’s a funny thing, isn’t it?“What are you?”Wouldn’t you like to know?