MTL - My Backyard is the Tang Dynasty - ~ explain!

Welcome to Arcadia! The world’s most plausible virtual reality game created by three major conglomerates, Ajin Electrons, Sillicoff Industries, and Argos Corporation. Join Jaeyeong, a legendary gamer who goes by the ID Dex, on a chaotic adventure as he hops in the capsule Dreamer to access the fantasy world of Arcadia! Are you ready?

“Boss, Madam wants to play a role in a movie.”

“Invest in a movie and make her the lead role!”

“Boss, Madam wants to be a model…”

“Bring international models for her to use as a stepping stone!”

“Boss… Madam wants to be a singer…”

“Buy 1 million copies in advance!”

In her past life, Bai Qingyan hurt the man who loved her. He looked at her lovingly as he fell to his death and she realized she loved him all too late. To live a life once again, she vowed to grasp this happiness with him. No longer will she regret.

“Who calls my name? You aren’t worthy! Also, it’s time to pay off the debt and enmity incurred from the past. Are you ready?”

- Description from Novelupdates

Xia Ning is betrayed by her boyfriend who wants to marry another girl from a rich and powerful family.

Lee Se-Hoon, the blacksmith of humanity’s last desperate united force, fought against the demons until the very end. However, the result was mutual destruction, with the world coming to an end. The moment he took his own life over that futile conclusion—

“…What is this?”

He had regressed to his days as a candidate at the hero training institution, Babel Academy. Having obtained a second chance, he swore to use anything as material to gain victory this time. Anything at all!