**The day I learned my cancer was terminal, I was possessed by a thousand-year-old female ghost.**
Dying, Lin Yu howled into the rainy night, only to unexpectedly gain the power to heal, a gift from the weakened female ghost **Su Muqing** inside him. But the price of being reborn was steep: Su Muqing’s elder sister, **Su Yu**, a god of slaughter wielding a thousand-year-old icy blade that could freeze souls, believed Lin Yu had imprisoned her sister and swore to cut him down until body and spirit alike were destroyed!
To stay alive, and to master this power that could bring the dead back to life, Lin Yu took a dangerous gamble: he healed a dying giant crocodile, sent shockwaves through the upper echelons, and was secretly transferred to a national research institute codenamed **Deep Blue**. There, he would turn divine power into groundbreaking technology:
- **“Key”**: an intelligent nanowarhead that precisely hunts down ever-changing cancer cells;
- **“Heart Source”**: a tireless biological heart that keeps the flame of life burning.
Enemies closed in from all sides. Greedy foes plotted using human lives as bait, while foreign forces launched deadly attacks. At the brink of despair, Lin Yu unexpectedly awakened the **Shadow of Annihilation Blade** within Su Yu! As the icy blade fell, the god of slaughter who had once come to claim his life turned to protect him for the first time. The blade that had once brought death became a light of protection.
When rockets tore through the dome, aiming straight for the heart of hope, Su Yu descended like a goddess. Her blade froze destruction, but her eyes reflected confusion: what was this “new life” that this mortal was willing to risk his life to protect?
The crisis passed for now, but the price was already showing: the blade markings on Lin Yu’s palm were spreading through his body. And thousands of miles away, an even more terrifying “Shadow of the Plague” had quietly been unleashed…
