The Demon King Seems to Conquer the World - Chapter 13: (Self Edited) Later at Night

Xu Yiyang, who was only late in his life when he was middle-aged, returned to 1999 in a dream.

At the turn of the millennium and the turn of the century, he realized a truth:
Not only to be famous early, to start a business and make money, but also early!
………………
New book uploads, new stories, new voyages,
Hope you all support!

- Description from Uukanshu

Once a young business prodigy, Violetta’s company crumbled fast thanks to internal corruption and the greed of the more successful elites.Now, she’s a certified 31 year old dirt-poor shut-in, living her best (or worst?) life as a full-fledged otaku.With nothing but her anime merch and a shaky Wi-Fi connection, she scrapes by on streaming money, all while dodging the harsh reality outside her door.However, after an all-nighter to play Merlysian Realm, a newly released VR MMORPG, she died from her unhealthy lifestyle and passed out.[SYSTEM ERROR: 404 - ACCOUNT NOT FOUND][Rebooting...][Loading...[ERROR: SYSTEM MALFUNCTION. PLEASE WAIT.].....[SYSTEM MESSAGE][You Have Received A Legendary Class][User's account balance has been updated.][Balance: UNLIMITED][Class: Merchant][Rank: SSS]“Huh?!”Not only was she transmigrated into Merlysian Realms, she was reborn in a struggling farmer's family that lived in poverty from a poorly developed kingdom in medieval times!The real kicker? It’s crawling with corrupt nobles, dying crops, zero trade routes, and is so tiny it could probably fit on a map as a dot labeled “Who Knows Where.”Can our otaku-turned-financial wizard save this sinking ship of a kingdom, or is she doomed to relive her bankrupt nightmares?Watch as she proves those who doubted her to be wrong and be accepted as a genius by using her knowledge from the modern world!

A series of short stories in the world of Toaru Majutsu no Index organized into chapters featuring Kanzaki Kaori as the protagonist, going around the world and space doing missions for the Church of Necessary Evil, however, there is more than meets the eye as each incident is connected.

One chapter was bundled with each limited edition release of the Toaru Kagaku no Railgun anime DVD and BDs, with all of them together being equivalent to a single normal Toaru Majutsu no Index volume

It was only after Su Yayan's death that she realized that she was a malicious cannon fodder female character who became a scapegoat in a Mary Sue story.