2203 Book(s) Related to obsession with a friend

In my last life, a friend I’d trusted for ten years drove a knife into my heart over a single biscuit. When I opened my eyes again, we had both been reborn—right before the extreme freeze arrived.

He was convinced the apocalypse had come. He borrowed from loan sharks, rented a massive warehouse to hoard supplies, and even crowned himself king during the icebound period, killing without mercy.

But he didn’t know the truth:

This disaster would end completely after only thirty days.

While he taunted me like a madman, I didn’t expose him. I calmly requested thirty days of paid leave from my company.

This time, I’ll sit in a warm, climate-controlled room and watch—when the state machine restarts on day thirty—how he drops to his knees and sobs in despair.

After I retired, I was willing to do the dirtiest work at a small auto repair shop—just to give my sick daughter an ordinary childhood.
I endured my mother’s insults, my eldest brother’s wage cuts, my younger brother’s extortion.
But they actually joined forces to steal my daughter’s life-saving money for gambling, then sold me into an illegal mine to pay off their debts.
When the iron chain locked around my wrist, when my daughter cried in despair, the killing intent that had slept in my blood for three years finally woke up completely.
They had no idea I was once the iron-blooded God of War—commander of a million troops, the name that made enemy nations tremble.

My fiancée, with whom I've been in a relationship for three years, has threatened to break off our engagement for the hundredth time, forcing me to donate a kidney to her adopted brother, who's faking illness and acting like a hypocrite.

My biological parents even threatened to sever ties with me: "You have a healthy body. Ian has nothing but us. You can't even bear to part with a kidney. You're so selfish and cold-blooded!"

They don't know that my hands, which I used to play the piano, had already been crushed by gangsters while cleaning up their mess; they also don't know that at this moment, I have a critical illness notice for late-stage bone cancer in my pocket.

Seeing the undisguised disgust and indifference in my fiancée's eyes, I swallowed the taste of blood in my throat and calmly signed the consent form for the live organ removal.

"Okay, I'll donate. I'll give you back my life along with it."

Later, I died like a dog on the rusty operating table of a shady clinic, my bones and marrow completely drained.

But when I was truly reduced to dust and left without even a complete corpse... the truth about my vicious foster brother faking illness was exposed.

The aloof and arrogant female CEO who once treated me like trash went completely mad overnight.

She knelt desperately before my nameless grave, plunged a sharp knife into her abdomen, and collapsed in a pool of blood, pleading for me to see her one more time.