Toaru Majutsu no Index: Genesis Testament - Volume 2, Chapter 2: Black Pill, White Snow — and_RED_Rose.

What?! The sticking to her daily, eating her tofu (taking advantage of her ) is a cross-dresser?

Not to mention that he is the Evil Highness!! She had slept beside him, and was touched by him, what a big loss!

Ah–!

Softly on his chest, listening to his pounding, strong heartbeat, her face turned red. Her greatest desire was to be in his arms.

She never dared to dream before, dared not wish for, and thought that in this life there was no such chance. This had been in her most secret heart of hearts, she longed for his warmth, longed for his love.

Even though he had hurt her before, he had given her more tenderness than others.

Being teased, loved, laughed at… had infiltrated into her bloodstream. Love, she did not know when it had taken root, for when she discovered it, it had grown into a towering tree, no longer able to be split open or cut off.

His hug, his warmth, she would not allow him to give it to others. If they were not only for her, she would rather not have them.

- Description from Novelupdates

This world has Fox Fairies, River Gods, Water Monsters, Great Demons and Cultivators who seek immortality.

Catastrophe erupted, it was the end of the world.

Survivors were surrounded by the impregnable wall, a new order was established…

The desire for power, faith, and darkness pervaded each other, layer upon layer of brands imprinted in every corner of the heart.

The virus wreaked havoc, were these humans’ true colors?

“I unexpectedly survive, I want to live.” –Du Dian

Shen Yuqing and the Emperor had a secret arrangement––

She was his pampered consort, and she would hit wherever the Emperor directed her to strike;

The Emperor “loved and favored her forever”, and she could do whatever she wanted.

Later, she set her eyes on the Empress who had the same type of marriage only in name…

- Description from Novelupdates