Danmachi Familia from Hell

Chapter 1 The Pain of Loss

The beast's roar echoed throughout the cave as its body was pierced by warrior's spear. Being that pierced the dragon's scales could not be described as a person. It was an entity devoid of free will, personality, or the ability to speak. A mere pile of bones capable only of carrying out the commands of its creator.
There were many more undead, but only this skeleton managed to break through the natural armor of the Infant Dragon.
This species from the draconid family owed its name to the small size compared to its brethren. Indeed, the average height of one hundred and fifty centimeters was not very impressive, but this height was related to moving on all fours, and in terms of length, these lizards could be at least four meters. Although their fiery breath was extremely weak compared to their peers and they did not have wings, and therefore the ability to fly, they were still a rare type of monster, which in the Dungeon was described as field boss. Even level 2 adventurers had quite a few problems with him if they were acting alone or their teamwork was poor. Of course, the specimens living on the surface were much weaker, but fighting three of them at once was not easy for Belakher.
The female literally cut through his troops with her claws. The male tried to burn to a crisp a spearman pulling its weapon from his abdomen. It turned out to be more difficult than the dragon could have thought. Landgrave, by gaining excellia and increasing his magic stats, constantly improved his Necromancer skill. He could command more minions at the same time without fear of losing control over them. More important at that moment was the improvement of the resurrection process itself. The undead no longer had remnants of tissue, hair or rotting internal organs full of worms. They became pure skeletons with blue eyes, whose silhouettes could only be covered by armor or the clothes they wore before death. Therefore, the monster had nothing to actually set on fire with its attack. Before the bones began to crack due to the high temperature, the spearman, who felt no pain due to its nature, managed to pierce the dragon's eye with its weapon. In response, the dragon stopped his exhalation and simply trampled the opponent with his paws.
Meanwhile, Belakher was fighting alone with the fortunately still young descendant of monsters.
Dragon managed to stand on two legs. It tried to knock the elf down with the weight of its body, but he managed to brace his legs on the ground and block the monster's paws with his bident. He was currently wrestling with a nearly two-meter-long, furiously roaring beast, smelling the stench from its mouth. He could smell the stink of raw meat, decay, and... sulfur.
Knowing what the last of the unpleasant smells meant, he gathered all his strength, successfully pushing the monster back away it spat out a fireball that finally hit the cave ceiling. This caused several hanging stalactites to fall towards them. Both dragon and elf jumped away from each other instinctively to save themselves from being buried alive.
As soon as Belakher regained his focus, he saw a light shining brighter and brighter, jumping from sunny yellow to intense orange to wild red.
He's going to breathe again, Belakher thought. I have nothing to hide behind, if he releases a stream, I probably won't be able to dodge it. I shouldn't use it in tight spaces, but I lack other options.
He straightened up, raised his left hand towards the blazing flames, and tightened his right grip on his bident. He dug his weapon deep into the ground so that the force of his own attack wouldn't push him back.
He saw a stream of flames shoot out with full force from the monster's mouth, but he didn't respond immediately. The further the fire was, the more it spread, weakened, and the young dragon didn't yet have lungs large enough to breathe as long as its parents.
Belakher waited for the moment when his body would break out the first sweat due to the sudden increase in temperature near him, and then he cast his spell.

- Ghostcrowd! - he screamed as loud as he could.

Offensive magic that did not require any incantation at all. The number of such techniques was negligible, while the number of people able to master it was even smaller. However, during the existence of the Rasa Sill forest, the last exam before joining the royal guard was its use in front of fully-fledged guards. The selection may have sounded harsh, but only those capable of reacting at lightning speed, capable of knocking down an assassin with a single attack, were worthy of defending the ruler's life. Quoting words took time, and when saving someone's life, even a fraction of a second can make all the difference. That is why this spell was a common technique among the defenders of Aurelion and his predecessors.
The name of the magic accurately reflected its appearance, as it took the form of dark purple, humanoid creatures devoid of limbs or any facial features. The faceless figures huddled together in a tight group and struck flawlessly at the chosen target.
Even without the falna, the spell was powerful enough to take the life of an adult man with a powerful physique. After being strengthened by the divine blessing and thanks to the gained experience, it became more than capable of breaking through the dragon's flames and taking the monster's life.
The beast's body smashed into the wall with full force, drawing the attention of its parents.
Both individuals roared angrily at the sight of their offspring's death. Infant Dragons belonged to species much more intelligent than Orcs or Silverbacks born in the same part of the Dungeon as they did. This allowed them not only to feel something more than pain, hunger and murderous lust. These creatures not only did not attack their own kind, but also to take care of them to some extent. This did not mean that they could actually mourn their fallen brethren like humans or love. It simply caused them even more aggression and increased their ferocity in battle.
The female, ridden by one of the skeletons who was scratching her natural armor with his axe, was crushed by her mass as she rolled on the ground. Meanwhile, the one-eyed male easily endured the archers' volley. None of the arrows managed to penetrate his sensitive tissues, and he eliminated the shooters with a violent swing of his tail. The sudden outburst thinned the ranks of the undead, thwarting Belakher's plans. He had intended to split the trio's attention and eliminate the monsters one by one. Unfortunately, there were only four more skeletons on his side. The resurrected were not strengthened by falna like their creator, so even the weakened beasts were devilishly strong for them.
The dragons, seeing the slayer of their child as the greatest threat, drew in air and blew out streams of fire, combining them into a joint attack aimed directly at Landgrave.