Douluo Dalu: Holy Grail Martial Soul, I Must Draw My Sword at Once

(The Martial Soul is the Holy Grail from the Nasuverse; a Servant-summoning story with multiple heroines, angst, and satisfying payoffs.)

He transmigrates into Douluo and becomes Wei Zixuan, the son of the Marquis of Wu’an, who guards the frontier of the Heaven Dou Empire.

At the age of six, he awakens the Holy Grail Martial Soul from the Holy Grail War and possesses Innate Full Soul Power.

Unexpectedly, his Holy Grail Martial Soul gives him Soul Skills with no offensive power at all. His family’s meritorious service has also made them the target of Emperor Xue Ye’s suspicions.

Then one day, he summons Artoria Pendragon, the King of Knights from the Holy Grail Martial Soul, also known as the female King Arthur…?

The Holy Grail is a miraculous vessel containing immense power, capable of granting any wish.

This Martial Soul grants him both the ultimate light and the ultimate darkness. As long as he kills an Evil Soul Master, his Holy Grail Martial Soul grows stronger.

After that, he summons the King of Heroes, the King of Conquerors, the King of Magecraft, the Emperor of the Holy Roman Empire, and more. With the Noble Phantasms of the Heroic Spirits, he takes Heaven Dou City by storm, wins the Soul Master Tournament, and repels the empire’s army…

…

Many years later, Wei Zixuan, who can be granted no further titles, can no longer tolerate the oppression of the royal family. He leads his Heroic Spirits and army before Emperor Xue Ye, trembling on the throne, and asks him these six words: “Your Majesty, why are you rebelling?”

Tang San: “At the Soul Master Tournament, how did you summon seven Heroic Spirits all by yourself? You shameless cheat!”

Tang Hao: “That golden, flashy guy keeps calling me a bug. Is the Clear Sky Sect really going to be wiped out today?”

Artoria: “Gather, breath of the stars above, torrent of glorious life. Receive this, Excalibur!”

I have to draw my sword at once!