Start by Spending One Billion [Entertainment Industry] - Chapter 3

Zhuang Feng is in his last year of high school, and he’s just moved to the city. He lives with his good-for-nothing cousin, who’s always on business trips falling for get-rich-quick scams, and his Saozi (sister-in-law), who tries to make his life miserable as much as possible. There’s one upside, though; she. is. freaking. hot. But one day, he found a piece of her underwear in the bathroom…. And unfolded a series of events that will turn his life upside down.

- Description from Novelupdates

“Do You Believe In Magic?”Cha Jin-sung, a nineteen-year-old web novelist, is stuck in a rut after his popular story, Tales of Heroes and Demons, is abruptly cancelled. Battling with his failures, he receives a cryptic message from an unknown reader, offering him the chance to complete his unfinished story. But in a surreal twist, his response to the email leads him to an extraordinary situation—transmigration into the very world of his novel.In Meltonia, a fantastical world filled with mana and strange powers, Jin-sung now inhabits the body of a seemingly insignificant character, Kaiser Vanguard, who was written into the story out of pity.Jin-sung, now Kaiser Vanguard, uncovers a chilling realization: he must survive the events he wrote into his novel. With his soul merged with Kaiser Vanguard’s, Jin-sung must navigate the hostile landscape of Meltonia, where the stakes of his story have become all too real.As he struggles to survive and understand his transmigration, Jin-sung's main goal becomes clear: to finish the story he once cared for so deeply, now that it’s no longer just fiction—it's his reality. However, whether he'll be able to navigate the dangers of the world he created and reach a satisfying conclusion remains uncertain.This new journey will test his wit, survival instincts, and desire to complete the tale he left behind, all while facing the possibility of an ending far darker than anything he ever intended.

Wei Shao’s part.

At first, Marquis of Yan, Wei Shao, was advised to marry the Qiao’s daughter : “The Qiao’s family has been in the Eastern County for three generations, although declining, but deeply honored, like the hundred-foot insects that die but not stiff. My Lord is majestic and powerful. The family of Qiao has begged the Lord, so why not take the daughter of the Qiao family and use her?”

Later, Wei Shao finally understood and hit his own face. It’s hurt, really hurt.

Xiao Qiao’s part.

Hmm, men are indeed cheap bones. The Emperor is the same.

……

- Description from Novelupdates

The world changed the day that cracks appeared in the sky– suddenly monsters named『Demonic Beasts』appeared and began to rampage, attacking people.

Meanwhile, girls called『Magical Girls』began to appear to counter the demonic beasts. As they defeated the demonic beasts, gradually people’s lives gained a semblance of composure.

–but when there is light, there is also darkness.

In the corner of an alleyway, a boy who had been attacked by a demonic beast was dying. His voice begging for help did not reach anyone and his body refused to move.

「Boy. Do you want to be saved?」

Looking into the boy’s face, a black cat began to speak to him.

The boy nodded firmly to the devilishly sweet invitation, in response the black cat mocked him.

「Is that so—then I’ll【Haunt (Save)】you」

—on that day, a『Magical Girl』was born in a place that no-one knew.

『She』never laments, no matter what the future may bring.