Love History Caused By Willful Negligence - Chapter 5Vol. 2 :

Three thousand years of bowing down to the Demon Lord, I would rather be a mortal than a celestial being when looking back, but for her I will… become one who controls life and death!

The world had changed when the System arrived, alongside the Cataclysm that filled the world with monsters. The technology was gone, replaced by classes and skills that allowed the people to fight back. When Devon ended up as a Blacksmith, a class that didn’t grant Intelligence, he had to face the reality, that his old career that he loved - mathematical sociologist - was over. Instead, he had ended up as yet another discarded member of the production class, overshadowed by the existence of the System Shops to the point of total marginalization. But, what if all he needed was to reapply his scientific thinking to the System...

[Warning: Mature Content]

“Master, are we going to keep what happened last night a secret between us?”

“For how loud you moaned and cried, Qing-er, I think the whole world has already learned all about it, and your concern is irrelevant.”

Yun Qing-er, the only disciple of the legendary immortal swordmaster Bai Ye, has been hiding her feelings for her master for years. Unaccepted by norms and morals, it is the darkest secret that she swears to bury deep within her heart.

But life has other plans. Bai Ye's desire for her burns hot beneath his solemn appearance. He will teach her not only the art of the sword, but also the pleasures of life that she never knew existed before.

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Smut starts at Chapter 17, with a teaser in Chapter 11. A bit softcore at first but will get wilder quickly as the story moves on :)

Note that this is NOT a typical cultivation romance. Immortals and spiritual power and whatnot are all plot devices… You'll see what I mean in just a few chapters!

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[Sneak Peek]

He pinned me against the poplar tree at the center of the garden. A breeze rustled past, stirring the sunlight sparkling through the autumn foliage above us, and a sprinkle of gold fell over his shoulders. “Say you want me,” he whispered.

“Bai Ye—” I breathed, but the rest of my words were replaced by moans the moment he traced his kisses along my neck and took my earlobe into his mouth.

Familiar tingles roared through me as he nibbled and suckled gently. His hand slid up my chest, and he played with my sensations with his lips and tongue and fingers until my arms trembled around him. All other thoughts vanished from my mind. The only thing I knew was the irresistible feeling of him on me, so overwhelming that my knees started growing weak. I would've fallen if he wasn't pinning me hard against the tree.

“Bai Ye …” I moaned again, clawing at his clothes. “Of course I want you … Right here, right now.”

He let out a soft puff of laughter, and his hand grazed down, gripping the folds of my dress. With a rip of fabric, he tore them away.

The world is in chaos, and evil spirits appear everywhere, causing chaos in the world and poisoning the people.

The imperial court set up a special department for subduing demons, recruiting strange people, Buddhist monks and monks from all over the world to work together to slay demons and subdue demons.

Ning Xiu was reborn with a proficiency panel and practiced martial arts exercises hard, just to have the power to slay demons in this world of demons, suppress the universe, and protect the peace and prosperity of the human race.

[Tianwang King Kong Gong: Twenty Layers (99999/99999)] The blood is like a furnace, burning the river to boil the sea

[Dragon and Elephant Prajna: Eighteenth Floor (81111/88888)] Raise the peaks with both arms and move the mountains to remove the ridges

…

Ning Xiu: “My strength is all based on hard work every day, rain or shine.”

- Description from novelbuddy