Toaru Majutsu no Index: New Testament - Volume 16, Chapter 4: A Sudden Change that Tells of Ruin - Operation_Right_Hand.

“Heroes killed my parents. Now I wear the mask of one. Until I can bury them all.”At seven years old, Hernan Vale watched his parents — two powerful heroes — brutally executed in their own home by the very people they trusted most: the legendary super-team known as the Zodiac 13.They thought he was dead.They made sure the world blamed villains.They covered their tracks.But Hernan survived — and never forgot.Ten years later, under a false name, Hernan enters the prestigious Hero Academy, hailed as a prodigy. To the world, he’s a rising star. To his classmates, he’s charming, calm, unstoppable.But inside?He’s a weapon. Waiting. Smiling. Counting names.As he trains to become a licensed hero, fights real villains, and rises through the ranks, Hernan plays the long game — earning the trust of the Zodiac, learning their routines, studying their weaknesses. One by one, he’ll bring them down.And this time, he won’t hide in the closet.But the deeper he goes, the more blood he spills — the more he wonders if he’s becoming worse than the monsters he’s hunting.And when love, loyalty, and lies collide, Hernan may have to decide:Will he save the world like they think he will...or finish burning it down?

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.

Sixty years after the global catastrophe, the Little Freeze Period ended, and the governments of the living regions began to collect land in the anarchic areas to be planned on a large scale, reorganized resources, and entered the recovery stage in an all-round way. These two decades are also called “golden Twenty years”.

This is a bright era in which new regions are rising one after another, politics is set up, capital is acting, careerists are everywhere, heroes are powerful, villains and grassroots are rising together! A young man rises up in troubled times with a full stomach of strategy, hides a tiger in his chest, and measures the world.

- Description from novelbuddy

When proposing, Gu Ningxi praised Tao Xinhe for her “perserverence and responsibility”, and on his wedding day, he vowed in public to “be one and only pair for life”.

Tao Xinhe believed it, believed it deeply, and devoted herself to being a good, virtuous wife for her faced blind husband.

Knowing that Gu Ningxi sees everyone as a tile face, she does not change her clothes or incense, and finally let him rest assured to embrace her;

She accompanies Gu Ningxi to the banquet and party, and mentions the names and origins of the guests, so that he can get rid of his arrogant name;

She accompanied Gu Ningxi while he misses his mother, endured the cold face of her grandmother, and dealt with the entanglement of her uncle and aunt, so that he would have no worries.

Yet nothing compared to that— Gu Ningxi could see Mo Qiqi’s face. In his eyes, only Mo Qiqi was vivid and pleasant, and the faces of the others were blurred.
He focused his eyes on Mo Qiqi, coaxed her softly, and allowed her to touch him. For this reason, he deceived and neglected his wife, and he couldn’t recognize Tao Xinhe who had changed her clothes.

Tao Xinhe’s heart died, determined to go, she left a letter of divorce. Her father and younger brother treated her like a jewel, she regained her spirits, and when she heard the news of her ex-husband taking Mo Qiqi into the mansion, she only smiled.

- Description from Novelupdates