Dragon Fall Valley.
A Ghost Ship broke through the sea of clouds, appearing with a whoosh, and moored between the large and small Red Moon and Green Moon, appearing even more mysterious and ancient under the eerie and bright Moonlight.
Uzumaki Naruto, clad in a haori, stood at the bow of the ship, overlooking the desolate and vast valley below.
Even from high in the sky, the black giant dragon that had slept for a thousand years still gave off a sense of shock and oppression, even surpassing Dragon Mother Tiamat.
Dragon Mother Tiamat was a female silver dragon, so her appearance lacked the domineering and mighty presence of the Black Dragon Monarch, being a bit softer.
The black giant dragon before him perfectly fulfilled all fantasies of a Western fantasy dragon.
"After delaying for so long, it's time to complete the Black Dragon's Heart quest."
Naruto leaped down from the Ghost Ship, like a god descending, arriving before the gigantic black dragon's body, which resembled a dark cliff.
Locating the inverse scale, a deep, bone-visible sword mark could be seen, splitting open the indestructible shield-like scales, the solid and heavy dragon flesh, and the huge heart beneath the flesh, covered by a metallic, iridescent membrane.
Given the Black Dragon Monarch's size, his heart was even larger than Naruto himself.
Moreover...
It was beating!
The heart would tremble once every hour.
As it pumped Dragon Blood throughout the vast dragon body, its powerful pulsations were like a mountain giant beating a huge drum, making the empty valley echo and causing the loose stones on the ground to vibrate and bounce.
If any other creatures were present, weaker ones might even be shaken to death by the Black Dragon's Heart's pulsations!
Of course, the Black Dragon's Heart's pulsations had no effect on Naruto.
He flew along the massive sword mark into the Black Dragon Monarch's dragon body, observing the Black Dragon's Heart, covered in a golden iridescent membrane, with careful attention.
There was also a sword mark, piercing and tearing through this house-sized Black Dragon's Heart.
The invincible strike of the hero from that year remained on it.
"Is this the hero's sword strike from this world? It's simply beyond standard."
"Normally, a Bronze-level Underground City wouldn't produce such a powerful individual; it would probably require a Silver Rank Underground City."
Naruto stroked his chin with one hand, his eyebrows raised.
After a brief study, Naruto casually raised a hand, and a large number of mithril jars flew out of his item bar with a clatter.
The mithril jars contained vibrant and rich fresh Dragon Blood!
Back in Wind Capital, when the dragon disaster erupted, Naruto had slain many flying dragons and extracted their Dragon Blood.
There was even a mithril jar containing Dragon Mother Tiamat's Dragon Blood.
"Dragon-level Dragon Blood, plus so much flying dragon-level Dragon Blood, should be enough to heal the Black Dragon's Heart."
"Next is the summoning scroll."
Naruto then took out a huge scroll he had already prepared from his item bar.
The scroll was almost as tall as him!
He glanced at the messages; only one quest remained incomplete:
[Main Quest: Black Dragon's Heart]
[Quest Content: 1. Since the Black Dragon is immortal, it can only be sealed; 2. If you don't want to seal the Black Dragon, you can also turn it into a summoned beast!]
[Quest Reward: 1. Unlock new dungeon, one random quality equipment, 100,000 experience points, 5,000 exchange tickets; 2. Unlock new dungeon, 8,000 exchange tickets, 60,000 experience points]
"One is sealing, the other is turning it into a summoned beast."
Naruto lowered his head in thought.
Sealing naturally goes without saying; possessing an immortal summoned beast would definitely be better than sealing the Black Dragon Monarch.
However, with the summoning contract system in the Fire Shadow World, the binding force is still too weak; summoned beasts and contractors are not master and servant, but rather battle companions, and sometimes not even companions.
For example, Orochimaru and the original Manda, who demanded 100 live human sacrifices every time he was summoned by Orochimaru.
In the battle between Sasuke and Deidara, Deidara prepared to self-destruct his true body to take Sasuke with him.
But Sasuke summoned Manda, first used genjutsu on Manda with his Sharingan, then burrowed into Manda's body to save himself, while Manda was blown to death, effectively used as a sandbag.
Naruto naturally did not want such an unstable contractual relationship.
After all, in the Goblin Slayer World, pure-blooded dragons, as war weapons from the Age of Gods, belong to chaotic order and are considered an enemy faction to humans. Who knows if summoning the Black Dragon Monarch in the future would lead him to make demands like the original Manda?
Like sacrificing an entire city.
It should be known that the Black Dragon Monarch, who has lived for over five thousand years, is definitely a hundred times stronger than the original Manda.
At least at the Eight-Tails or Nine-Tailed level!
100 live human sacrifices might satisfy the original Manda, but it would definitely not be enough to fill a gap in the Black Dragon Monarch's teeth.
"It seems this time, I'll have to exploit a bug."
The Black Dragon Monarch carries the mission of becoming the Dragon King of the Goblin Slayer World; he will not truly die before fulfilling that mission.
Even if he is summoned to another world and his body and soul are annihilated, he will still revive in the Goblin Slayer World, a conceptual immortality.
But—
Naruto could exploit the Black Dragon Monarch's resurrection bug!
"Finally, I'm going to try out the Shadow Monarch's core skill."
Naruto's azure eyes gleamed with intense light.
"The hero's sword wound, it seems I need to deepen it a bit more."
Naruto flew out of the Black Dragon Monarch's sword mark and into mid-air, raising one hand. The shadows covering the earth converged from all directions, forming a thousand-meter-long sword above his head.
This sword seemed to have no thickness, just a thin layer of shadow, dark and lightless, as if devouring everything.
"Just with shadows, it probably won't be enough to completely kill the Black Dragon Monarch."
Naruto's eyes flickered. He activated the golden Chakra within his body, performing nature transformation, then infused it into the Shadow Sword to enhance its power.
Green Wind Release Chakra, yellow Earth Release Chakra, red Fire Release Chakra.
The three slowly and steadily merged within the Shadow Sword.
Combining three Chakra nature transformations to create a new ninjutsu—this is "Bloodline Limit Removal," a Bloodline Limit Removal that surpasses "Bloodline Limit"!
For anyone else, it would probably be impossible.
But—
Naruto had already raised his Chakra nature transformation proficiency to the Perfect-level.
A mere Bloodline Limit Removal, Naruto could complete it.
With the perfect combination of Wind Release Chakra, Earth Release Chakra, and Fire Release Chakra, a brand new and even more powerful Chakra was born—Dust Release.
In an instant.
The originally dark and lightless giant Shadow Sword was suddenly enveloped by a faint, hazy white light, with a clear white outline at the edges of the white light, forming a special attack—Dust Release: Shadow Giant Sword!
Although Naruto had not mastered the Dust Release's Particle Style: Atomic Dismantling Jutsu, the Shadow Giant Sword enhanced by Dust Release Chakra was definitely not much inferior in power to the Particle Style: Atomic Dismantling Jutsu.
"Go."
Naruto waved his hand, and the nearly thousand-meter-long Dust Release: Shadow Giant Sword shot out with a whoosh.