Bigshot's Sweetie Is a Cat! - Chapter 1 - : Retreat First, Young Master 3

Everyone thought that the most powerful scientist they had ever seen was a national treasure-level scientist until they saw Baizhi-
The light of technology, a cosmic scientist.

Three thousand worlds are different.

In each world, she is keen on scientific research.

This is a story of a scientific researcher who concentrates on scientific research, explores high-dimensional science in various worlds, and refuses to admit defeat and fate. The text is easy to comprehend, flows smoothly, humorously, and the plot is full of ups and downs, and it is full of positive energy.

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

One day a young man found a mysterious door in his grand father house and that door transported him to Tensura....welcome to the new world...all the credit for the characters and main story goes to the owners, this is just a fanfic none of the characters or the storyline belongs to me...Tensura won't be live until later in the chapters, so if you in a rush, you can quick rocks...

What kind of story will happen when Yi Yu crosses the Tivat Continent with the backpack of his DNF account that he got out of the pit?

Without the Eye of God, can’t get elemental attributes?

Sorry, I have another elemental weapon, Fire Ice Dark Light, have you seen it?

Wendy: “?G Hey, there’s a whole new version of the story made for you, would you like to hear it?”

Diluc: “This is the man I want to surpass.”

Lisa: “Little cute, do you want to date your sister?”

Gan Yu: “Are you willing…will you work overtime with me?”

Ke Qing: “Would you like to witness this time of change with me?”

Ningguang: “One hundred million Mora, come to the sky and chat with me.”

Zhong Li: “Wandering around in the world, I can actually meet this wonderful person, Mr. Yi!”

Snow Queen: “Are you going to help me or stop me?”

(You can enter if you haven’t played it before, there are warm daily directions and battles, please rest assured to eat)

- Description from novelbuddy