Collapse Iron: I just transmigrated! You want me to save the Black Tower?!

[Time travel + System + Void Token + Death Rewind + Reincarnation to Save the World] + [Single Female Lead Black Tower]
The game begins with a direct confrontation with Emperor III!
No, why did the Black Tower and the Iron Tomb merge?
Jingliu became the Great Lord of Annihilation?
You want me to rescue the train crew?
That's a foehn wind! Are you kidding me?
Each of the three timelines is more insane than the last. What right do I have to be asked to change them?
......
The Iron Tomb craves knowledge? Fine, here you go.
By fusing with the Iron Tomb in the name of nothingness, can't you deny yourself?
Is the Celestial Ship launching a divine war against the Abundant Land?
Then let us draw our swords against the end in the name of destruction, and choose between death and destruction?
The Great Lord of Annihilation, Burning Wind?
Tsk... At a time like this, you still dare to come close to me?
Before the end, you called me Jiang Jiu, and I didn't mind. But after the end, what should you call me?
......
PS: A bunch of people with erratic and extreme fates, a thousand "what if" scenarios.
This is not a romance novel; the synopsis is insufficient, please proceed to the main text.