Shini Yasui Kōshaku Reijō to Nana-ri no Kikōshi - Chapter 52 - Where the Sun Sets

In a world of magic, monsters, and rising heroes…A quiet young man with a simple life finds himself walking a path far greater than he ever expected. With his axe in hand and peace in his heart, he'll discover strength where others seek power.Slow-burn growthParty bonds & adventureUnique class & stat systemA journey that starts small—but won’t stay that waySometimes the strongest warriors are the ones who never wanted to fight.

I was reincarnated into another world, and I’ve brought the Horadric Cube from Diablo II with me.
Being a knight is cool and all, but being a wizard is pretty neat as well.
So, which one will it be?

- Description from Novelupdates

Ever since Su Tian had transmigrated, she received a “Villain Bosses Mentoring System” that could automatically identify villainous bosses IN THE MAKING.

As for her missions, they were a little more complicated. For example:

Stopping the boy in her class from deviating onto the path of becoming a villain;

Turn the boy who was going to create a global financial crisis into Jack Ma of the new world;

Talk the strange girl working at the toy shop out of her spending habit, because she will be the cause of hyperinflation!

And the boy from the countryside that she ran into, please give up on developing bioweapons! Why don’t you focus on the Nobel Prize instead?

Just when Su Tian thought all the little villains were growing straight up into upstanding people under her “education of love”, the small villains brought about a big villain…

The young man has slender arms and legs and he cornered her into the restroom. He looked deeply into her eyes said, “I also need …”

Su Tian shuddered, “What… what do you need?”

“The education of love,” said the young man meaningfully!

Ten minute later, Su Tian… was educated.

System: This system is only responsible for identifying villains IN THE WORK. Matured villain are outside of its parameters.

Worlds overlapped, and Alien Species descended.Strange entities emerged one after another, as the shadow of evil spread wildly.The calm of life was shattered, and Zhang Xiaoman, inside a fish's stomach, accidentally consumed a system named “World-saving Plan”.From then on, he became the only person among all humans with Extraordinary Power.…Inventing an ancient oath, he established a unique methodology, Cultivated Dark Energy, founded an organization, took Control of the Transcendent, and resisted invasions.Well, this is actually the story of how a Big Con Man bluffed his way into saving the entire world.PS: Contains elements of the behind-the-scenes, Cthulhu mythos.