"Good work…" Vincent replied as he took out a reward for Luna and Rem.

Well, they are just +10 potions but they are still a supply of Celestial Energy.

They probably need a few years of Blood Essence of Mana Practitioners to get the same amount of energy. In short, this is the best reward he can give to them…

"Thank you… However, we still have some leftover potions you gave us before you sent us out." Luna replied but her hands were still taking the pouch of potions.

"Oh, just distribute them to everyone…"

"Alright… Then, they'll officially make a contract with you today…" Luna said as she really can't trust these other Celestials as well unless they formed the contract with Vincent using their Celestial Energy.

This contract is very important as it would bind their hearts to ensure that they will follow Vincent's command as long as it wouldn't threaten their lives or go against their principles.

"We can do that later… For now, tell me where these insects came from." Vincent asked as he looked at the swarm that has been cut in half.

At the moment, he can see the magicians throwing as many Mana Arts as they can. At this rate, it will probably take an hour or two before they can finish cleaning this up.

He has to think of something.

"We're not sure as well… However, if we will make a guess, it's probably from the dungeon." Rem answered.

"What? Is the dungeon outbreak already happening?" Vincent was shocked as he was just recently warned by Abe and the others about the subterranean Dungeon Outbreak and some sort of Alien Invasion that will come from space.

"Hmm… So you call it a dungeon outbreak. This is the first time I've experienced this as well. Do you think it will happen in other dungeons too?" Luna asked.

"It seems so. Someone recently informed me about this outbreak and more subterranean creatures will appear soon. We are expecting that the whole continent will be engulfed in war if this really happened."

"What? Isn't that really dangerous? Is it alright to remain here?" Rem asked. This is also the concern of other Celestial Beings."

"It's not like they will concentrate their forces on us… They will certainly be scattered and it won't happen in one go… He said that it will gradually happen over the years so we should have plenty of time to prepare."

Rem nodded at this since if they have a few more years, they were indeed confident that they'll get even stronger.

"That makes sense. I guess the other organization is also making their preparations."

"That's true… For now, can you tell me what's special about these insects? I know that they are difficult to burn and you have to flee from this swarm… However, I'm sure you've fought against them at close range… Tell me your thoughts…" Vincent asked.

Perhaps, if he has plenty of those missiles or enhanced incendiary shells, he would just bombard them until they were annihilated but unfortunately, he doesn't have that luxury…

"You shouldn't try fighting them in close range, their penetration ability is too much for humans. Being stung by these hornets will melt your flesh and even bones…" Luna said with a grave expression.

"W-what? Isn't that too powerful?" Vincent bit his lips as he knows that even if Mana Shield can block a few of them, it may not be the same once you were swarmed endlessly…

In the end, Vincent decided to join the extermination job with one of his one-time use Magic Tool.

[ Echo Blast Crystal ]

[ Quality: Epic

Number of Enhancements: 10/10

Durability: 110/110

Description: A unique crystal has Echo Blast Mana Art stored in it. Due to the unique properties of the crystal, the Mana Art's power has increased by 700%.

Remarks: This item can not be enhanced. Releasing the Mana Art will destroy the Crystal. ]

This crystal isn't new… It is previously the [ Magic Sealing Crystal ] that is in his possession.

The sealing crystal that he obtained before has been enhanced and ascended so it isn't just capable of "sealing" the Mana Art anymore, it can also store them now.

After storing the Echo Blast Mana Art, which is actually a technique used by Magic Knights, the crystal adapted and became Echo Blast Crystal.

Normally, the Echo Blast can only cover a small area with some concussing effect on the targets. However, with Vincent's enhancements and ascension, it had become incredibly strong and he's confident that it will be quite effective.

After making a plan, he used his Shrouded Steps to get nearer…

As soon as he felt that he was in a good distance, he poured a bit of his Pseudo-Celestial Energy into the crystal before throwing it to the swarm of insects. He did it as quickly as possible since he felt worried that the hornets might start scattering because of the bombardment of Fire Elemental Arts.

Luckily, the hornets remained dumb and were still gathered together…

Seeing that the crystal was already in the midst of the hornets and was being surrounded as if it was some attractive food, Vincent swiftly released the Echo Blast Mana Art by triggering it using the bit Pseudo-Celestial Energy he poured on it a moment ago.

Boom!

Like thunder, everyone felt the thump in their chests and felt the ringing in their heads. It happened so suddenly… Without any warning from Vincent at all!

Some of them almost lost their balance because of this sudden attack.

"W-what was that?"

"A sound wave attack?"

"Ugh… Is it a Grand Knight?"

"Even a Grand Knight can't do such a thing..."

The knights were a bit flustered because of how powerful it was. It was completely different from the missiles that were dropped by the Tempest.

"Look! All the insects are falling!"

"This is it! Finish them! They might still be alive!"

Lar didn't have to receive an order from Vincent as he immediately ordered all the Magicians to start the cleanup operation.

In just another 20 minutes, they confirmed that no insects were able to enter the city and they were annihilated.

"Victory is ours!" Lar shouted in celebration as it was followed by everyone who was also exhilarated by their victory…