Black Iron's Glory - Chapter 506 - Station and Choice

In the current era, people are either normal or are with ‘special abilities’. Cases related to the latter are managed by the “National Anomaly Prevention and Control and Special Species Management Office”.
Qi Zheng Emperor Sheng Lingyuan was reawakened a thousand years later after he jumped off the fiery Red Lake. Xuan Ji, a newly transferred staff to the Reparations Division of the Deviant Control Office, finds himself having to clean up the mess of a revived tyrannical monarch. The two seemed to share something from the past, but unbeknownst to them, a big conspiracy is stirring right underneath their noses that could destroy the balance of the world.

- Description from Novelupdates

In a world where the boundaries between dimensions are thinning, a young man named Kael Ardent is thrust into the Eternal Nexus, a realm where countless worlds converge. Here, the laws of reality are dictated by Aether, a mystical energy that fuels both creation and destruction. Kael discovers he is a Nexus Warden, a rare being capable of manipulating Aether to bridge worlds and command the forces of the Nexus.But the Nexus is not a place of peace. It is a battleground for Eldari, ancient beings who seek to control the Nexus and use its power to dominate all existence. Kael must navigate this treacherous realm, forge alliances with warriors from other worlds, and unlock the secrets of his own latent powers. As he grows stronger, he uncovers a prophecy that foretells the rise of a Prime Warden, a hero who will either save the Nexus or doom it to eternal chaos.

Su Jianan was marrying the love of her life. It all seemed picture-perfect, except for a few catches. One, it was a marriage of convenience. Two, she would be divorced after two years.

With her well-being under threat, Su Jianan had only one choice to keep herself safe: marrying, and pretending to be loved by a powerful man capable of protecting her. Conveniently, her soon-to-be husband was Lu Boyan, a man she had been secretly in love with for fourteen years. She went along with the marriage, knowing full well that her love was one-sided.

Or was it?

Business tycoon Lu Boyan had known Su Jianan ever since she was ten. Back then, the death of his father had plunged his world into darkness, and Su Jianan’s presence had brought a new ray of light into his life. Now, it was his turn to protect her. He would marry her to keep her safe. But two years later, he would divorce her: it would no longer be safe for her to remain by his side.

What fate awaited Su Jianan and Lu Boyan? Would their marriage mark the beginning of a happily ever after? Or would it lead to heartbreak and sorrow? Would their marriage outlast the two years? What kind of secret was Lu Boyan keeping?

Follow along with the twists and turns of this slow-burn, action-packed love story!

- Description from Novelupdates

It was only after Su Yayan's death that she realized that she was a malicious cannon fodder female character who became a scapegoat in a Mary Sue story.