The male protagonist of this novel is surnamed Cang, and the female protagonist has the bloodline of gods and devils. Later on, she became the ruler of the Nine Heavens. Do you know which one it is?

The female lead had traveled back to the other world from the modern world. She had many identities. She was the demon concubine of the demon world. Later, she lost her memory and became an unremarkable fairy in the heavenly world. She wrote novels. The Nine Heavens Fairy was his good friend. Oh right, she slept with a god of war and wrote about this. What kind of novel was this? I forgot.

Answer 1

"The Nine Soul Demonic Concubine" is a fantasy romance novel written by the author Qiao Chu. The general plot of this novel is:

The Fiend Ancestor was reborn, and the spirit souls of the past were awakened at the same time. The nine souls became one.
A man turned into a woman and grew up in the human realm. A woman disguised as a man and broke into the violent world dominated by demon gods and demons. She started from a humble demon slave and walked on the path of a master who ruled the ten continents.
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"After Rebirth, She Became the Demon Lord's Handsome" was a fantasy romance novel written by the author, Lan Jiujiu. The general plot of this novel was:

In the Nine Realms, strength reigned supreme. She was born with top-grade immortal bones and her cultivation was unparalleled in the world. Unexpectedly, he was betrayed during his advancement. He was cut into a human pig, his immortal bones were dug out, and he died a tragic death by self-detonation! When he woke up again, it was already a thousand years later. Becoming the useless Ninth Princess of a ruined dynasty, everyone could bully her. In her previous life, the person who harmed her had become the high and mighty Empress Ling Xiao. He led the human world and shocked the nine provinces! Rising from the ashes, Phoenix Cry! In this life, she would definitely make those who had hurt her pay with blood! However, why did the legendary Dark Night Demon Venerable, who was feared by the Nine Realms, pamper her so much from the first time they met? Little did she know that what she thought was love at first sight was actually his thousand-year wait. He had planned this for a long time just to protect her forever, to be safe and happy.
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Goddess Proud of the Ninth Heaven was a Xianxia novel written by the author, Qiu Zhi. The general plot of this novel was:

As a daughter is strong, as a mother is strong, as a wife does not need to be favored, I have the final say.
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"Genius Beast Tamer Ninth Miss" was a fantasy romance novel written by the author, Tianxin Meigu. The general plot of this novel was:

She was the king of the Dark Mercenary World. She killed, plundered, and looked down on the world. She was reborn and became a powerful family that shook the continent. She was the "Ninth Young Master of the Beiting Family." From then on, the world was full of splendor. She was an ancient demon beast. She had a magical space. She cultivated heaven-defying cultivation techniques. She killed the heavens and killed the gods. She did whatever she wanted. She was cold, beautiful, domineering, and arrogant. She was the one who led the world to compete. In this article, the male and female lead had two C's. The male and female lead were strong. The ending was one on one.
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Master of the Nine Realms was a fantasy novel written by the author, The Sunniest Day. The general plot of the novel was:

Sometimes, he acted cute and acted like a demon who protected his wife, and sometimes, he was decisive and terrifying. The legendary life of Li Xiuyan, the master of the Nine States, officially began the moment he saved the goddess after his rebirth.
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The book "Lord of the Sky" was a fantasy novel written by the author, Scream. The general plot of the novel was:

The female ghost possessed him, and from then on, his entire life would go berserk! Let's see how the small and lowly creatures of the ten heavens and earth can dominate the heavens.
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"Lady Diji's Peerless Beauty" was a fantasy romance novel written by the author, Beichen Wan. The general plot of this novel was:

The Goddess of the Nine Heavens had two concubines. She was born with the love of thousands of people, and her cultivation was at the peak. He was cold and self-controlled, a genius of all fields, and revered by tens of thousands of people. However, he did not expect that one day, the Blood Race would invade, his generals would rebel, his father would die, his brother would die in battle, and the gods would be trapped. From then on, the Heavenly Dao would collapse, and the ancient gods would fall…Yue Qingshuang died tragically at the hands of her lover, and her phoenix bloodline was taken away. After experiencing life and death, she traveled through 3,000 small worlds and returned. She was summoned to a lower plane, and from then on, she began the path of revenge and abuse. She stabbed the sky, trampled the earth, and broke the Ultimate. She did everything. Just as she was engrossed in her work, a devilish, arrogant, and domineering man beside her held her hand."Shuang 'er, I still lack a Demon Empress and have my eyes set on you. I'll use the 33 heavens as my betrothal gift. What do you think?"
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"The Adorable Beauty of the Prosperous Age: The Emperor's Invitation to the Arms" was a novel by the author, Song Mei. The general plot of this novel was:

She is the goddess of Cangshan Mountain. She was in charge of the Cang Mountain Divine Scroll and was in charge of the world's forbidden arts. She was the most cold and aloof goddess in the Nine Heavens, famous for her ruthlessness. She was aloof and arrogant, but she was born beautiful and beautiful. The first time she left Cang Mountain, she had made the male immortals of the Nine Heavens lose their minds and become charmed by her.
Imperial Emperor Cang Mi was the only Imperial Emperor in the Nine Heavens who was not born as a god. He was aloof and cold, and he never liked to speak to others. He was the most unreasonable god in the Nine Heavens that could not be provoked.
These two gods, who had nothing to do with each other, suddenly sent out wedding invitations one day…The gods were struck by lightning from a clear sky ~
The gods finally accepted this cruel reality.
On the day of the wedding, the bride ran away, and the one who eloped with her was actually the Demon Lord Si Zhan, who already had an empress…
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"Lord of the Netherworld" was a fantasy novel written by the author, Yi Meng Nanshan. The general plot of this novel was:

With a flick of his finger, the gods and devils were subdued, and the sword was shocking to the world! The Lord of Abysmal had returned from the plane, suppressed the geniuses of the world, and wiped out all his enemies. He would flatten the heavens, rule the world, and rule over all eternity!
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"Nine Firmament Emperor Lord" was a fantasy novel written by the author, Gu Yanying. The general plot of this novel was:

He was originally a prodigy, but he was covered in dust. Once awakened, the dragon soared to the nine heavens. The soul from Earth had transmigrated into the body of a young man from a family with two innate meridians. He had cultivated both the soul and the martial arts to wash away the reputation of being trash. The body of the eternal heavenly meridians had reappeared in the world. Who in the nine heavens would dare to claim the title of emperor?