There’s only one rule in this Holy Grail War: out of the 1.5 billion people in this world, the last one standing will win the Grail.

—This is the story of seven kings from different eras descending upon this world, bringing with them their kingdoms, subjects, armies—even their lands. They all converge on Jerusalem to conquer it, fighting for their respective ideals and nations, in a battle to seize the ultimate Holy Grail. In short, it’s the Kings’ Holy Grail War!

The Conquering King, the Heroic King, the Omnipotent King, the Sun King, the Thorn King, Charlemagne, the Holy Roman Emperor, the King of Magic…

Faced with such terrifyingly powerful opponents, Suya—who transmigrated into this world, was forcibly dragged into the war for the survival of Britain, and became the rightful King of the entire land—realizes:

No matter the reason—whether it’s to stay alive, to protect a fake crown, or for the sake of the false Knights of the Round Table who follow him—right now…

“I must draw my sword immediately!”

Russell, who traveled to Type-Moon for unknown reasons, is in distress.

Good news: He got the cheat code.

Bad news: The cheat code is 100% or even 90% wrong.

"You need to enter keywords, and use the keywords to generate the life of a certain historical figure for the trial, and get relevant rewards based on the trial achievements?"

"Then I must choose the most ancient dragon Aotian, the all-purpose Gilgamesh!"

"Can't you directly enter a person's name as a keyword?

" "Then, the most ancient hero king, Uruk, a hybrid of man and god."

"Huh? Why am I not called Gilgamesh in the simulation?"

"What!? You said that according to the latest unearthed stone tablet, Lugalbanda is the most ancient hero king?! So I am Gilgamesh's father now?"

"You use the sword of Earth history to kill my official on the moon!?"

Faced with the obviously pitfalls of the cheat code, the trial without any information strategy, and the weak start, Russell could only sigh.

"Ah! This is bad luck. But since I'm here, it's okay if I can't pass the level, but can I let you bully me?"

Qin Qing, reincarnated in Liyue as a soldier in the Qianyan Army, one day entered a pure white space and discovered his soul had split, simultaneously traveling through nine worlds. In "My Youth Romantic Comedy Is Wrong, As I Expected," my sister is Yuigahama Yui. For her happiness, I want her to be the heroine. I must first conquer Yukinoshita Yukino. Look how powerful I am... What, Yukinoshita Yukino conquered me? In "Naruto," Konoha is a terrorist organization. I must escape first, then destroy it. In "Inuyasha," I'm a weak mountain god in this world. I can't protect anything, I can't do anything... I heard there's a treasure called the Shikon Jade that can make aliens stronger. In "Type-Moon," we were planning to get married, but while I was using the bathroom, she became the King of Great Britain and is about to marry a queen. Do you think you'd want a woman like that? In "Ultraman Tiga," a suited figure fights a monster with brutal ferocity, dismembering another one.

[Main character is purely a plot device + no romantic pairing + angst + live streaming across multiple worlds]

Ling Xinyu unexpectedly became bound to the Multiverse Live Streaming System and started live streaming Honkai Impact 3, attracting a large number of ancestors to watch.

Himeko: This is the final lesson...

Bronya: The only constant truth about humanity is that human truth is bound to change...

Alicia: Our story has ended. From now on, it's your story...

Kiana: I will turn this imperfect story into the one we hope for. I just want you to see it all...

Raiden Mei: All I know is that you are more important than this world!

...

Watching the stream of knife-like comments coming one after another, a group of veteran viewers exclaimed that they couldn't take it anymore.

Meanwhile, in every time and space dimension, one famous person after another suddenly realized the truth.

Yue Fei: This world is not perfect, but I am determined to transform this imperfect world into the one we aspire to be. Now that the emperor is cowardly in battle, all I can do is pave the way for future generations with my life!

Han Xin: Compared to this world, are you more important? The scheming between ruler and subject, I betrayed the very person I should have let down. Now, in my twilight years, Ji Tao, do you still love me?

Li Shimin: The only unchanging truth for mankind is to change the truth itself? I've got it! From this day forward, I will make our nation strong through science and technology!

In addition, countless famous figures and scholars from the Han, Ming, Qin, and Three Kingdoms and Wei-Jin periods learned a great deal from the sword.

Every dynasty will undergo tremendous changes!