Obscure Op: Survive As Fallen Noble With Gunsmith Skill In Eroge World - Chapter 69 - 68 - The Cleanup

I am Master Siwei, and I speak for arcane arts.
This is an era of heroes and heroines.
This is an era of great changes.
In the end, it will be an arcane era opened by me.

- Description from Novelupdates

Bad End Night is a novel by Hitoshizuku-P, based on a series of Vocaloid songs, the NighT Series. The plot revolves around eight actors trapped in a never-ending play, seeking a way to escape.

Yuzuki thought it was just another pastime from his casework, proofreading a half-finished fantasy webnovel. But when he woke up the next day, he was no longer in his world. He was inside the story… as a disposable extra.The world he now walks is beautiful, brutal, and broken. Its plot is incomplete. And looming over it all is a calamity so catastrophic that even the protagonist would have failed to stop it. Driven only by his cunning and spite towards this twisted fate, his only choice is to stake his existence in a world on the verge of collapse. But how long can a nameless extra outwit the fate of an unfinished novel? How is he going to survive in this ruined world?If the story dies, so does he.“Well, curse the protagonist. Why would I gamble my life on some self-righteous fool who’s just doomed to fall anyway?”#Academy#WeakToStrongMCNo Harem!

Once time travelling, the talented young master became the idiot of the Gu family who was cut open and her son was taken away by others. Five years later, she came back with a cute baby. – She did it! Expensive jewelry that is popular in Beijing——she designed it!

The top restaurants all over the mainland – she opened it!

Even the most mysterious island of no return is hers!

Miss Gu took her son to eat and drink spicy food, slapped his face and watched the show, so happy!

But one day, a certain man suddenly blocked her door: “Woman, how dare you steal my prince’s son!”

Ha! Want to snatch her son? “Close the door and let the dogs go!”

- Description from novelbuddy