Interstellar pirates raid, alliances crumble, and a dark matter called black gold suddenly appears. Its highly radioactive and destructive power threatens all of humanity. Simultaneously, alien species frequently create crises, and large-scale mutations occur in humans, with black gold becoming the first suspect. Evolution or purification? Humanity faces its greatest existential crisis and dilemma since entering the interstellar age...

Su Yan was reborn.

In his previous life, he loved depressing anime, novels, and TV dramas, and in this world, he is a new screenwriter who has just been hired as a full-time employee at a TV station.

At first, everyone just thought that the screenwriter wrote those stories because he was inspired by a broken heart.

But later

the reporter asked, "Teacher Su Yan, are you born with a dark mentality? Do you like to get happiness by destroying the beautiful things created in your works and making your fans wail and be sad?"

Su Yan, "There is absolutely no such thing. I am 100% a mentally healthy and sunny boy. I am born with the ability to love."

In fact.

Su Yan looked at the skills he had extracted from the emotional value of his fans' wailing, such as the Flying Sword Style, Flute Expertise, Violin Expertise, Piano Expertise, and Charm Natural Form...

[Swordsmanship, ruthless killing, conquering the world, invincible protagonist, multiple female leads but not brainless]

Ten years ago, the demon queen of Yu the Great failed in her attempt to overthrow the court, and her blood was spilled in the imperial city. She left behind only a mad and incompetent child who could not cultivate, who was demoted to a commoner and became the greatest disgrace to the royal family.

Ten years later, a mad boy returns with "The Tomb of the Sword Immortal Emperor"; his name is Jiang Chen...

They call him a madman, for he could slay gods and men with a mere flick of his finger.

He may be called a fool, but one of his wild poems made even the most sage scholars bow down in admiration.

Despite being called a useless man, he single-handedly conquered the country, dominating five kingdoms and ten dynasties, with no one daring to raise their head.

He was said to be extremely cruel, yet he was surrounded by women of unparalleled beauty...

He may be called cold-blooded and ruthless, but he opened the gates of heaven with a single sword, saving the common people from suffering...

Others laugh at my madness, but I laugh at their ignorance...

"Sword, come!"

"In this life, wherever the sword points, that is the path to kingship!"

She was a renowned female war god with unparalleled strength and tactics. After being reborn into the Duke’s residence in the great Yong Kingdom, her pure identity as the legitimate daughter was tarnished.

Her supposedly gentle fiancé came to break off the engagement, wanting to demote her to a concubine. Her relatives considered her a disgrace, believing she should be grateful even as a concubine.

Without mercy, she crippled the despicable man and officially severed ties with her hypocritical relatives. Unexpectedly, an imperial decree bestowed her marriage upon the ruthless and powerful Regent, causing a city-wide uproar. When the decisive Regent, known for his brutality, meets the swift and fierce female devil…

【Strong Female Lead + Strong Male Lead + Double Clean + Rebirth Story + Love for Country and Family】

Above the Nine Heavens, there exist supreme deities, suppressing all the heavens and myriad realms, receiving the worship of all living beings. There are primeval mad demons who once chased the zenith of the firmament, seeking to annihilate the sun, moon, and the cycle of reincarnation.

Yang Xiu, an abandoned son of his clan, suffered a cruel betrayal: his martial veins were stolen, and he was reduced to a cripple! Yet, as long as a single breath remained, his martial intent would not be extinguished! The youth chose to enter the demonic path, inheriting the will of an undying Demon God!

With the gods of all heavens as his nourishment and the Heaven-Swallowing Divine Art as his legacy, he wields an invincible sword to sweep across all heavens and myriad realms, vowing to stand peerless and proud against the vast sky!

To be a demon is to be unbridled; to be invincible is to be brazenly arrogant!

High upon the Nine Heavens, a black-robed young man stood, sword in hand, gazing upon the assembled deities:

'I possess an invincible sword; any god who refuses to bow shall be sent to meet their doom.'

Xiao Chen transmigrates into a demonic cultivation novel, becoming the most brutal, bloodthirsty Patriarch of the demonic path in this world. He has four outstanding female disciples. Having read a few chapters of the original work, Xiao Chen learns that in the original story, he showed no affection toward them—beatings and scoldings were the least of it. In the end, after his female disciples ascend and become Immortal Emperors, the first thing they do is imprison and torment Xiao Chen, ultimately slaying him with a single sword strike.

Knowing the plot, Xiao Chen sighs and, for the sake of his own survival, decides to treat them well this time.

Little Martial Sister: "Senior Sister, Master didn’t hit me today, and even gave me some pills! Do you think Master has become kinder?"

Eldest Martial Sister: "Hmph! Don’t eat it. There’s no way Master can be this good-hearted. He must be—"

[I humbly request the Heavenly Book to reveal the opportunity I may obtain today.] [Fifty miles outside the mountain gate, in a cold, clear pool, there is a spirit fish that can be caught.] [I humbly request the Heavenly Book to reveal the most suitable cultivation method for me at present.] [The seventh-grade "Yuan Bai Yi Jia Zi Slaying Dragon Song" of the Lushan Sword Sect, the fifth-grade "Cai Hong Lian Ni Zhi Xuan Jing" of Qixia Mountain, the third-grade "Xuan Jun Zhu Dao Da Sheng Zhen Yan" of the Xiantian Demon Sect...] [I humbly request the Heavenly Book to reveal the auspicious time, place, and object for me to attain the Dao.] [At the rising of the Golden Crow in the east, at the third quarter of the Mao hour, on the golden summit of Sumeru, build the Xuan Lei altar, and protect myself with the Immortal Capital Jade Pendant...] The vast land of Jambudvipa shines like the sun, illuminating the great world. In the five regions and two heavens, there are Daoist lineages manifesting in the mortal world, there are immortals and Buddhas standing in the void, and there are all kinds of beings seeking to ascend to immortality. Jiang Yi, holding the Heavenly Book, with the body of a demonic cultivator, knocks on the door of immortality, proving that unparalleled supreme achievement throughout history! "What kind of evil master is Jiang the Demon Master..."

After staying up all night to finish reading the entire series of Pillar Slayer, Qin Zi suddenly fainted from anger.

When he woke up again, he found that he had actually transmigrated into this manga and become the Water Pillar "Giyu Tomioka"!

This time, he will do everything he can to save everyone in the Demon Slayer Corps, find a way to break the curse of the Demon Slayer Mark, and prevent the tragedy from happening again!

"Although it's a transmigration into a book, his personality and consciousness will lean more towards Giyu Tomioka. Or rather, he is Giyu Tomioka, and Giyu Tomioka is also him."

"Of course, this time our Giyu won't be disliked, probably~"

(This is a novel written for my own reading, including some other people's works. I'm just sharing it here for everyone to see. If you see a part you don't like, just leave.)

A 21st-century college student named Xuanming was struck by lightning while passing by a large tree during a thunderstorm and was transported to the world of "Demon Slayer". In this world, he became a disciple of Kuwashima Jigoro and learned the Breath of Lightning. Due to his unparalleled talent, he became an undisputed strongman of the Demon Slayer Corps. Watch how he makes up for the regrets of reading the original work and leads the Demon Slayer Corps to kill Muzan!

The introduction is insufficient; please proceed to the main text.