Demonic Disturbance

Demonic Disturbance was a city-wide invasion on the capital of the Re-Estize Kingdom by an army of demons led by Jaldabaoth. Unbeknownst to the kingdom and the rest of the New World, the attack was actually orchestrated by Nazarick as part of Operation Gehenna.

Background
A small war had taken place within the kingdom, between the Re-Estize Royal Family led by Princess Renner and the criminal organization, Eight Fingers. The princess's aim was to save her kingdom by expunging Eight Fingers who had been responsible for most of the country's major crimes. To accomplish this, Renner had brought in like-minded individuals to her cause and hired Adventurers, such as the Adamantite-ranked Adventurers, Blue Roses. The two forces were seemingly locked in a stalemate until the forces consisting of Jaldabaoth and his army of demons were involved in it.

During a meeting with all the adventurers within Re-Estize gathered in the Ro Lente Castle to discuss about this new threat, Princess Renner explains that the northeast corner of Re-Estize is surrounded by a wall of fire, thirty meters in height by what is known as [Flames of Gehenna]. She reasons that the flames should pose no harm to them physically. However, what awaits them within the confines of the firewall are the demonic forces led by Jaldabaoth. The adventurers altogether were instructed to help thwart whatever the demon Jaldabaoth is plotting such as the enemy's attempt to seize a certain magic item which is on its way to the Royal Capital.

Hearing news of this, this sparked a disturbance among the adventurers present in the meeting. It was upon realizing the fact that the region encircled by the firewall included the warehouses and shops that made up the capital's economic heart. What disturbs the adventurer even further was learning that Jaldabaoth is able to slay two adamantite-ranked adventurers in a single blow. Before chaos broke out, Evileye of Blue Roses and Renner reassures them that the warrior Momon of Darkness was able to hold his ground evenly against such a high-level entity. After introducing Momon, Renner immediately begins her briefing with the other adventurers including him about their plan of operation against Jaldabaoth.

Renner explains that their strongest adamantite-ranked adventurer Momon will be acting as everyone's bow and arrow rather than a shield to spearhead their operation around him. She states her plan to form the adventurers up into a battle line, followed closely by a line of guards. Behind them will be the support line of priests and magic casters. In this way, they will act under that fashion to advance forward into the enemy stronghold. At this point, Renner reasons that if the enemy does not engage them, then they will allow the adventurers to go ahead and advance further into the enemy headquarters and suppress the area. However, if their forces are under attack along the way, they will first determine a way if they can repel the attack in response as a counterattack. If possible, they will have to continue advancing. If not, then Renner will ask the adventurers to retreat while drawing off the enemy. In the meantime, the guards will hold off the enemy as long as possible.

If the adventurers must retreat, then they will head to their meeting room, the one where they are at for the briefing. Renner will have the support line of magic casters heal the wounded soldiers afterwards, and from there they will see about mounting another attack. According to Renner, when they are retreating, the battle lines would spread, and the defense would weaken. However, the same could be said with their enemy as this applies to them too. In other words, as the adventurers spread out, the enemy would follow them. This would also thin out the enemy’s defenses. It would be easier to attack from the flanks than from the front. Forming the adventurers up into a line was a feint intended to thin out the enemy. Hence, for this battle, they are not a shield, but a bow, the bow of the Re-Estize Kingdom, drawn and loosed, to piece their foe with an arrow straight through the heart. Such arrow will be none other than Momon himself dispatched into the battlefield.

When Momon sees the enemy lines open up, he will make a low-altitude flying assault to break through them. Since Blue Roses lost two of their members, only Lakyus and Tina will join the battle line and fight. Since a user of resurrection magic is participating, Lakyus who is in the frontlines of the fight had agreed with the leader of the Adventurer's Guild to have additional people accompany and protect her. Meanwhile, both Evileye and Nabe will be accompanying Momon as he makes his entry. It was Evileye's intention to follow Momon to where Jaldabaoth was, in order to provide support so that the warrior could face off against Jaldabaoth one-on-one without interference from its allies like the demon maid. However, before they fire the arrow which is Momon, they must perform one more task and that involves rescuing survivors held captive by the demons within the firewall. Within the heart of the enemy formation, this task of rescuing civilians will be left in the hands of Climb, Brain Unglaus, and Lockmeier to take care of while everyone else are busy fighting the demons. Considering how there are a lot of demons who have wings to [Fly], Renner told them that using a flying spell in combat against it is pointless as this will only serve to draw the eyes of the demons to spread out and fly around the capital. She emphasizes that they need to draw their attention to the ground.

On the other hand, the nobles' house troops are responsible for protecting their masters’ estates, and the soldiers look to handle the defense of the Royal Capital. For the warriors led under Gazef Stronoff, they will stay behind as bodyguards in the Ro Lente Castle tasked with defending and protecting members of the royal family. Additionally, Prince Zanac's and Marquis Raeven's men are given the task of patrolling the city. It was said by Lakyus that Renner was the main person, rather than the royal family, who used up some of her own private finances to fund and paid for the arrangement of adventurers. In addition to that, the adventurer group Darkness was employed by Marques Raeven to be brought to the Royal Capital for this occasion in dealing with the Demonic Disturbance. They were gathered in the other room to make the final preparations for the operation. They considered when to break through, what to do when the enemy showed up in force, and how to deal with the possible complications which might arise. In the end, they simply had too little information to make any concrete plans and the final conclusion was that they had to go with the flow and deal with it themselves.

Battle
Once the operation begins, all the adventurers gathered from all over Re-Estize including Lakyus stood before the firewall. Before they cross through the wall of fire, the supporting priests from the temples had already cast spells of fire protection on them. Although the plan had called for the formation of a defensive line, they realized that forming a neat line of battle in the middle of a city was very difficult to some degree. Therefore, they had used up to four parties of orichalcum ranked adventurers as the linchpins and vanguards of the formation, assigning each of the adventurers to one of them. Upon entering the firewall, the adventurers found no trace of human life nearby where they are at and how the streets are all the same except for many of the residences having been destroyed by Jaldabaoth's demons. Seeing as there are no sign of blood or the smell of it, they grew concern that the civilians may have perhaps been taken to a different place by the demons in the firewall.

Lakyus orders the iron and copper-ranked adventurers to stay behind and search the houses for any presence of lifeforms including demons and humans hidden in it. She had at least one mythril-ranked adventurer team also remain behind with them to supervise the task. Meanwhile, the rest of them including herself will spread out into the formation and advance into the frontline. Lakyus walked in line with the orichalcum-ranked adventurers, standing at the head of the group, together with them. Not long after, they heard the sound of a distant explosion carried over softly from the distance. The lower-ranked adventurers trembled in fear, the middle-ranked adventurers prepared for battle, the high-ranked adventurers scanned their surroundings, and the highest-ranked adventurers in the formation looked straight ahead. Amidst this sea of reactions, Lakyus keenly noticed the party on that side had already entered direct combat with the demons. On their end, Lakyus's group was confronted by many Hellhounds.

Lakyus made sure to maintain the group's morale and fighting spirit throughout the course of their battle with the demons from falling. This was after telling the adventurers how very powerful Jaldabaoth is in contrast to the other adamantite-ranked adventurers except Momon and how large the difference/gap in power between them were. Their defensive line begins upon engaging the fifteen Hellhounds in a death battle. With a prayer to the Water God on her lips, Lakyus cut a leaping Hellhound in half with a single stroke from her demonic weapon, Kilineiram. The floating swords surrounding her acted as shields, blocking the attacks of the Hellhounds from her flanks. She kicked away another one that was snapping at her ankles. Lakyus was handling six hellhounds by herself, and the rest of the nine went on to attack the other adventurers from her group.

The weaker adventurers took them on one at a time, while the stronger adventurers handled multiple hellhounds at once. When doing so this way, they have managed to successfully whittle down the numbers facing them without problem. By the time Lakyus had slain all six of the Hellhounds, the others were done as well. Lakyus then orders the priests to tend to the wounded adventurers. She orders people on her sides, to repeat this command that requires them to advance 50 meters and hold out against the demons. As a result, the cry to advance echoed from both sides. Holding her demonic blade, Lakyus went forth with them too.

Aftermath
The forces had managed to repel the demon invasion but it still suffered quite a large amount of losses, thousands of people were either killed or captured by the demons, a large section of the warehouse district suffered damages. The damage and losses were so severe that they caused the delay of the yearly war with the empire by several months in order to try to recuperate from the losses.