MTL - Movies and TV: a New Class Per World - Chapter 213

The protagonist is an accidental time traveler - he didn't wait, didn't guess, only dreamed, but ended up in history, which he didn't pay much attention to. He was just lucky with his lineage.Ryo is a new member of the Nara clan, from the Uzumaki lineage on his father's side, and it so happened that he was born not at the beginning of the known plot, but more than three decades and two world wars later. Now he has to figure out how to get out of this situation however he can.

“Primum non nocere.”

Xie Yunshu’s father, who was made a marquis because of his military exploits, finally thought of taking the two of them and their grandmother to the capital. She was still in her mother’s womb when her father left home to join the army, but now she is a seventeen-year-old girl.

It is said that in the Hou’s Mansion in the capital, his father had a county magistrate, Ping’s wife, and a pair of children born of him and Ping’s wife. County owner Ping’s wife’s mother’s family is powerful, but Xie Yunshu’s mother is just a peasant girl.

After crossing, Xie Yunshu smiled slightly, we have the melon eating system in hand, we know everything, everyone is good, if it is not good, then try it!

- Description from novelbuddy

There are 7 dimensions controlled by a Universal Government. Each dimension is governed by its own unique universal laws. There are a few things they have in common, there is always 1 the strongest and 1 the smartest. Except for the Universal Government, it’s forbidden to travel between dimensions. Interdimensional gates don’t close on their own and if left open, creatures that dwell in the darkness between the worlds will find their way through. Without warning, one of the dimensions disappeared without a trace. The remaining 6 in panic did all they could to find the reason why. They never found an answer. 12 years after the dimension vanished, a signal started appearing in the empty universe. Perhaps the answer is in that signal.Tsugi No Level