1853 Book(s) Related to my alien bodyguard

To annul the engagement, the aloof heiress of a wealthy family spent three years planning thirteen accidents to try and kill me.
Car accident, falling object, poisoning... I survived covered in blood, only to be met with her disgusted question: "How come you're still alive?"
She let her scheming childhood sweetheart crush my father's ashes, and even personally drained my last remaining blood to save me, all for her sweetheart's self-inflicted injury.
She thought I would be like a dog, clinging to her side forever without any boundaries.
Until that day, I calmly handed over the annulment agreement, clutching the diagnosis of late-stage brain cancer, and completely disappeared from her world.
Later, when she finally found out the truth, she searched the world frantically, only to find my emaciated, cold corpse.
That arrogant and haughty young lady has completely collapsed.
She personally sent her childhood sweetheart to hell, knelt before my body wearing a veil, and desperately raised a gun:
“Ivan, walk slowly on your way to the underworld... I’m giving my life for you.”

When the apocalyptic red rain fell, my brother and I both awakened spatial abilities.

He awakened a space as vast as a mansion and was hailed by the entire family as their savior.

While I only awakened a "suitcase" and was ruthlessly drained of all my assets by my parents to support my brother, then kicked out of the house.

They mocked me cruelly: "We don't keep deadweights. Go wait for death in the 70-degree furnace outside!"

What they didn't know was that my brother's space had no preservation function—his stockpile of premium ingredients would soon rot into a pile of maggot-infested meat.

But my suitcase had upgrade attributes!

While they fought each other over a sip of putrid green water in the 200-degree hellscape,

I sat in the "Eden" I had created, watching herds of cattle and sheep, drinking ice-cold fresh milk.

Betrayed to death by my own brother, I was reborn before the apocalypse descended.
He rushed to seize the god-tier [Copy] talent first, leaving the trash [Purification] talent for me.
He thought that with this talent, he'd have no worries and reign supreme in the apocalypse.
Meanwhile, I quietly closed the last door of my fortress.
He didn't know that his prized copying ability had a fatal flaw.