Later, He Became A Royal Healer - Chapter 14 - It's best if you reflect on yourself a little.

Zuo Chengan was thrown into a brutal survival game, only to awaken its sole god-tier skill: The Eye of Truth.From that moment, he began to see the game—and the world—for what they truly were.A broken branch lying by the roadside?Ordinary players: “Just a useless stick. Toss it aside!”Zuo Chengan: “A hidden NPC is offering a feast of rare delicacies.”A suspicious dish placed before the group?Ordinary players: “Don’t touch it! It’s probably poisoned!”Zuo Chengan: “Completely safe. And utterly delicious.”A monstrous creature blocking their path?Ordinary players: “Terrifying! Avoid it at all costs!”Zuo Chengan: Silently studies its hidden weakness.What began as a game to push humanity toward evolution revealed itself to be something far more sinister—a trap, a scheme of ruthless exploitation.The desperate battles fought in the game’s dungeons were nothing but a spectacle, staged for the amusement of another world.With his all-seeing Eye of Truth, Zuo Chengan ascended through the 12 Heavenly Trials, dismantling the web of lies spun by the false gods. His piercing sight exposed the malicious truths behind the game.Standing at the summit, blade in hand, he declared, “I will cut through this endless night, tearing apart the shadows of chaos to reveal the light of truth. Let the world see reality once more!”

A slime randomly falls into existence. Sapient and born with the ability to recreate parts of the things it preys upon, the highly confused drop of primordial soup decides that the only real thing it can do is become the being at the top of the food chain. A task of longevity in the leaves of the Omniverse.

Until he became the lowest-ranked master, his lonely and luckless life never changed.Suddenly one day, a descendant injected him with a nanomachine, and the machine started ‘speaking’ to him.[I am the seventh generation Nanomachine manufactured by Sky Cooperation, and I am operating as a central nerve connected to your brain.]“What? What are you talking about?”This was beyond the boy’s knowledge, he turned pale.The Nanomachine linked to his cerebrum realized the User was not understanding a single word it said.“Who are you, and why are you doing this to me?”[“I am the seventh generation Nanomachine.]“Nano Machine?”[Yes, Nanomachine.]The boy’s face hardened.Mashin was the deity the Mashin Religion worshipped, along with the Sacred Fire.The religions’ Master communicated with Mashin.“Um, are you really Mashin?”The boy knelt down and asked with a trembling voice. At this, the Nanomachine attached to his cerebrum realized it had been misunderstood.

“Send me to the past.” That’s how the first step toward revenge began.