The Strongest Dull Prince's Secret Battle for the Throne - Chapter 639

As long as the land is square, Yan Bicheng should divide the world into four parts.
The dark organization “Ruyimen” has abducted children for many years, trained them as assassin agents, and sent them to the families of various countries for use in order to collect a lot of secrets, and gradually extended their evil hands to the court.
Feng Xiaoya, the favored minister of the King of Yan, suffers from bone melting disease. She is unparalleled in her “sickness and beauty”. For some reason, she abandons the eleventh wife, Qiu Jiang, and puts her under house arrest in the mountains. Qiu Jiang, who has forgotten his past, fled alone on a stormy night. After several twists and turns, on the way back, he met Yi Fei, the third prince of Cheng who was in trouble in a foreign land.
One wants to regain memory, the other wants to regain the throne. The two people who are incompatible with each other walk side by side towards Cheng in a bloody storm… but they find that the Ruyi Gate, which has been entrenched in Chengjing for a hundred years like a poisonous snake, seems to have undergone an unknown shock… …
The situation of the Four Kingdoms is back, and there is only one goal – to eradicate the evil organization Ruyimen!
However, as Qiu Jiang’s memory slowly recovered, a unparalleled secret finally surfaced…
Mrs. Ruyi, who is it? There is another mystery behind Ji Ying’s death?
What is the purpose of this return journey after a narrow escape, and where does it go?

- Description from novelbuddy

The consciousness of a Great Magus suddenly returned to his original body on earth, just before he transmigrated into the magic world.

Nothing has changed, it's still the same earth.

However, when he looked at earth once more as a former great magus, he discovered earth was not as simple as he knew it to be.

Hidden magus, legendary races such as vampires and werewolves, they do exist, ruling the world through the shadows.

Faced with a former great magus, who possessed as many spells as libraries, would the earth that had been ruled by a few people be able to remain calm?

A book about Austria’s recovery to mightiness!!!A history about House of Habsburg’s struggles and successes!!!The Holy Roman Empire — which was neither holy, nor Roman, nor an empire — now came back!!!

When it collapses, it is impossible to speak, the imaginary number tree in the quantum sea.

Along with the prosperity of civilization, the disaster called Honkai will come silently.

Apocalypse, Famine, Herrscher, End.

No one is the savior of the world, only the warriors who fight for a better world.

However, in an accident, they got an accidental gift against the collapsed and successful civilization.

The information called the future, the reward in line with the heart, and the punishment of sorrow.

Can they use this to meet the challenge of collapse?

Bronya: Betrayal is a silver smile.

Raiden Mei: I will fall into darkness, and you will return to light.

Kiana: I’m Kiana, also k423, and more importantly, Xilin.

Otto: Old friend, I’m not lying.

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[ps: Exposure stream movie-viewing body collapse novel. 】

- Description from novelbuddy