MTL - From the Void King To the Ghost Swordsman of the Light of the Beginning - ~ Dove for the morning update

Traversing into another world, Zhang Xuan finds himself becoming an honorable teacher.

Along with his transcension, a mysterious library appears in his mind.

As long as it is something he has seen, regardless of whether it is a human or an object, a book on its weaknesses will be automatically compiled in the library.

Thus, he becomes formidable.

“Emperor Zhuoyang, why do you detest wearing your underwear so much? As an emperor, can’t you pay a little more attention to your image?”

“Fairy Linglong, you can always look for me if you find yourself unable to sleep at night. I am skilled in lullabies!”

“And you, Demon Lord Qiankun! Can you cut down on the garlic? Are you trying to kill me with that stench?”

This is an incredible story about teachers and students, grooming and guiding the greatest experts in the world!

- Description from Novelupdates

Ye Chen transmigrated to a fantasy world by chance. He was well-aware of how dangerous this world was, so he kept a low profile and quietly cultivated in Xuantian Holy Land. He tried his best not to get involved in any affairs for fear of getting caught up in any vendetta.

If he encountered problems that he could not run away from, he would ensure that he annihilated all his opponents as swiftly as possible.

He showed no regrets for staying aloof and no remorse for killing his enemies.

Hundreds and thousands of years later, Ye Chen’s disciples were domineering existences in the world, and their influences spread far and wide. On the other hand, Ye Chen was steadfast to his principle of not drawing any attention to himself.

…

One day, the Heavenly Path experienced significant changes, and all the demons and gods throughout history attacked Ye Chen simultaneously. Ye Chen was forced to defend himself.

He drew out his sword and easily eradicated all the demons and gods, resulting in the collapse of the Heavenly Path.

Ye Chen blinked his eyes in disbelief and said, “Was that all?”

The teenager Long Ao, ten years of silence, was reduced from genius to waste, and was ridiculed and mocked.

Ten years of persistence, ten thousand failures, and finally won mysterious Dragon Seal.

With Primal Chaos Saint Body, cultivation invincible cultivation technique, refining Heaven and Earth, devouring endless stars, sweeping the wasteland! Ask the vast stars, who dares to fight me? Boundless Starry Sky, War God! …

- Description from Uukanshu

agreed. He thought they might just talk, have a few drinks, and that nothing significant would happen. However, she invited him to a hotel, and they spent the night together.The next morning, she told him it was just a one-night stand and that they would probably never meet again. She said goodbye and left. Ronan also decided to treat it like that.The next day, at his college's hosting club, Ronan was given the responsibility of hosting that year's annual function, where they had invited a singer.When Ronan looked up at the singer, he was shocked—it was the same woman he had spent the night with. After checking her history and social media, he formed an impression of her. Every picture she posted was in revealing clothes, bikinis, or almost nude outfits.He concluded that she was just a promiscuous woman, likely driven by lust, and that she had probably chosen to spend the night with him simply because she found him handsome.Understanding this, Ronan decided to focus on his work. That morning, she had made it clear that it was just a one-night stand and nothing more. He would treat it exactly that way and carry out his responsibilities.Protagonist has System---No NTRIt's Harem, with many girls but The Singer is Main Heroine.