Lei Ao secretly rejoiced in his heart. Fortunately, he didn't walk in recklessly. For a power like the Underground Alliance that specialized in underground business, no matter who it was, they wouldn't show their true colors to those who came in contact with them.

The powers in God's Domain wouldn't dare to cause trouble for the Underworld Sect, but that didn't mean they didn't dare to cause trouble for the person who entrusted them. If Lei Ao just barged in like that, and one of the higher ups of the sect happens to be assassinated …

In that case, there was a good chance Lei Ao would be hunted down as a client by that sect.

Mask... Where could he find them in such a short time?

Lei Ao thought for a moment, then took off his shirt and wrapped it around his head. After that, he withdrew his aura and after a moment of hesitation, he walked in.

"Welcome to hell. What kind of service do you want?"

The room was dark, and the ghostly voice floated by Lei Ao's ears, making waves of cold air rise up in his heart.

"Assassin." Lei Ao intentionally made his voice hoarse and low.

"You finally found the right place. Different levels of missions have different prices, I wonder what kind of strength you want to kill?" "Un, even if you don't know, it doesn't matter. You just need to tell us the information about that person. We will naturally investigate his strength and report the price to you."

The darkness in the room was actually able to resist divine sense. Even now, Lei Ao still hadn't discovered the other party's location.

"You're mistaken, I want to be a killer, not a delegate." Lei Ao said.

"You want to be a killer?" The ghost-like voice clearly froze for a moment before continuing, "Your Excellency's strength does not seem to have reached the level of our sect's assassins."

"Oh, what are the conditions?"

"Our sect's assassins are divided into four ranks, Heaven, Earth, Profound, and Yellow. Each rank is related to where they belong. The lowest level Yellow Rank assassin requests the strength of the great circle of the Azure Sea Realm."

Lei Ao asked, "Isn't there a difference in power levels between the six realms? Why is there only four levels? "

"The Great Net Realm and the Divine Emperor Realm are not included in this." The ghost's voice sounded a little disdainful, as if it didn't want to acknowledge the two additional realms.

"Killing people doesn't necessarily depend on strength." Lei Ao was still fighting for it.

"That's right, so in addition to having a requirement for strength, our sect will have to go through a test to become a killer. To join a Yellow Rank killer, one must kill an expert that is at least a ninth level of the Sky Sea."

Nine Layered Heavens? I guess I just had to run. Lei Ao was immediately discouraged. He asked, "Do you guys have anything to hide your auras from us?"

"No, you can't hide your aura unless you keep it hidden. Otherwise, once you start fighting, your aura will naturally appear." But we have a special mask that hides your true face. "

"Is this useful?" Lei Ao furrowed his brows, "If you really want to check, shouldn't the legends be able to easily pass through the mask?"

"Don't worry about that. There is a formation formation to resist divine intents engraved on the mask, and it can be separated into four levels by strength. The lowest level mask can only resist the divine intents of the Canghai Realm, and even the highest level mask can't be seen through by Martial Saints."

"Oh, there's such a good item. Tell me the price."

"Masks of the Vast Ocean Realm only require five hundred low-grade vein crystals, those of the Cloud Bridge Realm only have eight thousand mid-grade vein crystals, those of the Saint Ruler Realm only have fifty thousand high-grade vein crystals, and those of the Sovereign Realm are priceless. They need to be exchanged for treasures or cultivation techniques."

Note: Vein crystal up, down, still fourth grade. 10 lower grade crystals can be refined into 1 middle grade, 10 middle grade crystals can be refined into 1 upper grade crystal, but the upper grade crystal cannot be refined any further.

The top-grade spirit crystal was only formed naturally and was extremely precious. Therefore, the main currency in the God Realm was the top-middle and low-grade third grade spirit crystal.

When Lei Ao heard the price, he was secretly speechless. This wasn't just normal black. Not to mention Martial Saints, just the difference between the other three realms was at least ten times more.

Right now, his entire net worth was one hundred and thirty-two low-grade spirit crystals, three mid-grade spirit stones, and a long sword. These were all things that he had stolen from them a moment ago.

Even if it were converted to low-grade spirit crystal, it would only amount to 162 spirit stones.

Lei Ao thought for a moment, then took out the long sword he snatched from Luo Ping's hands, and asked: "How much can this sword sell for?"

Suddenly, a big hand reached out from the darkness and took the sword from Lei Ao. A wave of black fog slowly caressed the sword's body.

After a moment, the ghost's voice sounded again, "Inferior tier Divine Weapon, without any special attributes. The material contains a tiny amount of Gold Iron Sand. Would you like to pawn it or sell it?"

"Is there a difference?"

"If it is pawned, it is considered as 500 low-grade vein crystals. Within ten days, it will be redeemed. The ransom is 800 vein crystals." "If I sell it, I won't be able to redeem a thousand meridian crystals."

"Sell it." Lei Ao didn't even think about it. In any case, he had stolen it, and he didn't even use his sword.

After obtaining 1000 meridian crystals from the Hell Alliance, Lei Ao had bought a Azure Sea Realm mask, and a low-grade long saber. In addition to the small amount of wealth he had, he had spent more than half of his 1000 meridian crystals.

"Sigh, if I can't become an assassin, I'll have to fight for it."

After walking out of the Hell Alliance branch altar, Lei Ao sighed. He only had 30 vein crystals left. After this round of battle, just recovering his strength was not enough.

The vein crystal mine was occupied by two sects, and rogue cultivators didn't have the qualifications to mine it. If one wanted money, one had to be a merchant like Yan Kai, who would buy at a low price and sell at a high price.

But this also required a great deal of cost; he simply could not produce 30 vein crystal. After thinking about it for a while, it seemed like the only choice Lei Ao had was to rob.

With this mask, Lei Ao still needed to change his identity. Usually, he would show his true face while concealing his divine vein aura as an ordinary rogue cultivator with an immortal foundation.

Robbery or all-out battle, wearing a mask, releasing the power of the Divine Veins, becoming a mysterious person. He could use his eyes, ears, and eyes to mess around.

His only worry was that if someone came to the Gates of Hell to find out about him, they might leak out the information.

Although he had asked before, the answer he got was that he would never leak any of the information that Lei Ao had bought and sold in the Underworld Gate.

However, if someone were to pay for Lei Ao's information or whereabouts, the Underworld Gate would only reveal information regarding Lei Ao's other identity.

In other words, when Lei Ao returned to his normal appearance, the Underworld Sect would not reveal any of his information. But regarding the identity that Lei Ao wore the mask on his face, the Underworld Sect could sell it.

Lei Ao didn't oppose this. In any case, from the moment he bought the mask, the person in the mask was destined to be an enemy to everyone in the world.

Furthermore, he who possessed the Divine Veins would fight the entire God Realm sooner or later. He only hoped that he could mature quickly before his identity was exposed.

Tang City had experts guarding it. Although Lei Ao's Howling Wind Arts was fast, it was not fast enough to teleport. Thus, he did not dare to make a move near Tang City.

Although he wasn't afraid, he didn't want to cause unnecessary trouble.

He flew aimlessly and extended his soul consciousness as far as he could. He anxiously looked for his target.

For the first time in his life, he felt the importance of the energy crystal to a cultivator. Not only did he recover, he also had many things he wanted to buy.

Lei Ao had a faint intuition. These ancient ruins were left behind when their ancestors fought with their enemies. While he lamented about how powerful the Underworld Sect was, he also secretly hated them for being so dark.

The price of information in every ruin required an astronomical amount of energy crystals, so Lei Ao had no choice but to fight for it with all his might.