Regarding the question of whether one thousand lives are enough to beat Honkai Impact 3rd.

Su Qing'an wanted to be the one who could bring Fu Hua happiness. And for that, even in the darkest timeline and the most hopeless future, he could tolerate a purgatory far more terrifying than before.
[Current timeline in the book: Pre-civilization Canghai City – Main storyline Changkong City – Main storyline Changkong City – Pre-civilization – Yunmo Era – Paradise of the Past, Post-Honkai Odyssey, IF route with a corrupted immortal, Cyberpunk elements in the Lostbelt – Anti-Entropy main storyline (final chapter plus side stories).]
———————————This article is dedicated to the immortals as a million-word love letter.