MTL - Virtual World: Close Combat Mage - ~ The first one is related (related settings)

This novel is also known as Gu Daoist Master

Humans are clever in tens of thousands of ways, Gu are the true refined essences of Heaven and Earth.

The Three Temples are unrighteous, the demon is reborn.

Former days are but an old dream, an identical name is made anew.

A story of a time traveler who keeps on being reborn.

A unique world that grows, cultivates, and uses Gu.

The Spring and Autumn Cicada, the Venomous Moonlight Gu, the Wine Insect, All-Encompassing Golden Light Insect, Slender Black Hair Gu, Gu of Hope…

And a great demon of the world that does exactly as his heart pleases!

—

*Gu (蛊) referred to poisonous insects in various cultures in South China while in folklore Gu spirits could transform into all kinds of species.

- Description from Novelupdates

After failing to transmigrate to a proper cultivation world, Lin Zhengran woke up to find himself as a little kid… in kindergarten.With no other choice, he decides to fool the system by pretending to cultivate.[Today, you encountered a fairy descending the mountain. You must find a way to obtain the Pure Yang Elixir in her hand.]Lin Zhengran looked at the milk candy in his childhood friend’s hand.“Give me the candy. Do you need to go to the restroom? I’ll call the teacher for you.”The little girl, confused and innocent, handed the candy to Lin Zhengran.“Here’s the candy…”[Congratulations! Without lifting a blade or striking a blow, you successfully obtained the Pure Yang Elixir from the fairy!]

After his first college party, Dallion woke up in a small room without doors or windows. Next thing he knew, he woke up as an “awakened” in a small medieval village in the middle of nowhere. Now all he needs to do is figure what the heck is going on. And what’s the big deal with being awakened anyway?!

Yao Bianliang was an actress in her previous life, and once she entered the shuangwen story of the entertainment circle. The system said: “As long as the host works hard to become cold and become an 18th-line star that no one cares about, she can get a bonus of 100 billion.” Yao Bianliang sat up in shock while saying: “Is there such a good thing?”

- Description from Novelupdates