Inside the Cave of Obscenity - Vol 5 Chapter 1: The Dawn of Decisive Battle

Neo was on the verge of achieving his dreams, set to graduate with flying colors and secure a bright future. But fate had other plans.One moment, he was lounging in his apartment, enjoying his simple and ordinary day. The next, he found himself in a nightmare—a brutal game orchestrated by the hidden rulers of the world.But Neo wasn’t just another victim. When he was pushed to the brink of death, something awoke within him—an ability unlike any other. God-Tier Adaptive System .Every injury made him tougher. Every battle made him smarter. Every encounter shaped him into the perfect survivor.Now, he isn’t just fighting to escape. He’s evolving. And soon, those who once saw him as prey will learn to fear him.'To kill those sick monsters, I must become something far worse.'

Su Wan is a Realm Destroyer. She shuttles to different time-spaces using the identity of the “Cannon Fodder Ex-Girlfriend”, dedicated to plotting how to happily tear apart the male protagonist and the female protagonist. –There’s no such thing as protagonists who can’t be torn apart, only Ex-Girlfriends who don’t work hard enough~

- Description from Novelupdates

200 years after the world has ended, the laws of society have long been forgotten.