During this period, Riezel almost devoted himself to exploring the dungeon day and night, but he never forgot about possessing magic known as 'Almighty'.
After learning Ais's 'Ariel' and Lefiya's 'Arcs Ray', he considered practicality and various factors and learned quite a few magic from others.
Without a doubt, with Lefiya as his party companion and having traveled through the dungeon together for over a month, aside from her 'Elf Ring', Riezel effortlessly learned her remaining magic.
Riveria, as the strongest mage in Orario, individually possessed nine kinds of magic. Naturally, Riezel didn't miss the chance to seek guidance from her whenever she had time. In the end, he learned five magic from her.
In addition to these, Riezel also acquired a powerful magic from Finn, designed to be a trump card for turning the tables in trouble.
With all of those learned magic, coupled with the previously learned 'Ariel' and 'Arcs Ray', Riezel, like Riveria, now possessed nine magic.
This was also the reason he was able to trigger the learning conditions for a developmental ability known as 'Mage'.
This development ability was proof of being an advanced and expert mage since obtaining it wasn't easy. Generally, it was a patent for pure rearguard mages, while adventurers who could only use one or two magic to assist in combat, would find it impossible to trigger 'Mage'.
Even someone like Ais, whose wind enchant magic was considered to be overpowered, couldn't trigger 'Mage'.
Riezel, on the other hand, successfully triggered 'Mage' after reaching Level 4, relying on his astounding number of magic and usage rate. This development ability could enhance the power of magic, the effects of magic, the range of magic, and many more, making it an almost omnipotent magic-specific auxiliary development ability.
However, at this very moment, he wasn't using any of the nine magic he had previously learned. Instead, he was employing a magic he had recently learned by chance.
"Follow blindly the sun in the sky."
"Blossom, armor of laurel, so that all will flee from thee."
Stepping onto the magic circle, Riezel chanted a brief chant.
"Raumure."
As the name of the magic was uttered, a deep green light membrane appeared around everyone present.
Ais and Tiona, the first to dash forward, were the first to feel the change in their bodies.
Their speed suddenly skyrocketed, especially Ais, who was already as fast as the wind. In an instant, she vanished, appearing in front of a Black Rhinos.
The Black Rhinos was startled and halted its charge, leaving Ais with widened eyes, seemingly at a loss.
On the other hand, Tiona directly attacked a Black Rhinos in front of her without hesitation.
"HYAAA—!"
Amid her tender shout, Tiona, with her petite frame, swung the enormous double-bladed sword, delivering a striking blow that sliced through the Black Rhinos in a flash.
The once proud tough hide of the Black Rhinos considered to be on par with first-class equipment, seemed as fragile as paper before the dazzlingly fast slash of her sword, easily tearing it apart.
"S-So fast?!"
Even Tiona herself seemed surprised by her own prowess. Her exclamation happened to snap Ais out of her bewilderment.
*Pu-chi—!*
With a flash of a silver sword, a cold arc of light cut through the massive body of a Black Rhinos, cleaving it in two with a seemingly effortless strike.
Ais executed an extremely fast slash, effortlessly breaking through the tough hide of the Black Rhinos.
While it was true that she wielded first-class equipment, Desperate, capable of piercing the Black Rhinos' tough hide, the attack enchantment formed by the sudden surge in speed under the deep green light membrane was equally crucial.
"What the heck happened...?" Tione, who had just unsheathed her curved sword, was astonished by the display of Ais and Tiona.
"Protection magic?" Lefiya finally reacted, reflexively blurting out at the sight.
As everyone was astonished by the sudden display of Ais and Tiona, Riezel's voice suddenly rang out.
"Limited duration, move fast!"
His brief words snapped everyone out of their astonishment. Without hesitation, they launched a fierce assault on the numerous Black Rhinos before them.
"Lefiya!" Riezel shouted at the Elf who remained by his side, not rushing into the fray.
"Yes!" Lefiya's grip on her staff suddenly tightened as she took a deep breath.
In the over a month since teaming up with Riezel to explore the dungeon, Lefiya had undergone significant growth. The determination she made in the reception room that day had driven her continuous efforts over the past month. Although her growth might not have been as eye-catching as his astonishing speed, she had indeed made considerable progress.
Now was the time for her to showcase the results of her efforts.
"Proud warriors, snipers of the forest."
Lefiya slowly closed her eyes, as if the vicious monsters and brutal roars before her didn't exist at all. It was as if even the battles of her companions had faded away. With an ethereal voice, she chanted her magic.
"Take up your bows before the advancing plunderers."
"Answer the call of your brethren and ready your arrows. Tinge them with flame, the lamplight of the forest."
"Release them, the fire arrows of the fairies."
"Falling like rain, burn away the savages."
This was the last of the three magic in her possession.
Unlike the single-shot offensive magic like 'Arcs Ray' or the summoning magic of 'Elf Ring', this was pure and renowned for its destructive power and attack range—a wide area annihilation magic.
"Fusillade Fallarica."
As the magic circle expanded from beneath her feet, Lefiya raised her staff, turning magical energy into a fiery red radiance that soared into the sky.
In the next moment, the red radiance transformed into an endless rain of fire, descending from the sky.
*BOOM!* *BOOM!* *BOOM!* *BOOM!* *BOOM!*
Explosions, explosions, and explosions.
Explosions filled the air as the rain of fire descended, hitting the ground in a split second, creating a continuous succession.
The labyrinth was suddenly illuminated by the fire, and the ground shook continuously from the bombardment. Countless Black Rhinos were enveloped by the rain of fire, directly hit, and consumed by flames.
In an instant, a large sea of fire appeared, burning the labyrinth with crackling and rattling sounds.
This was Lefiya's fire element wide area annihilation magic and the reason she was considered to rival Level 5 in attack power.
Under the burning of this magic, Black Rhinos, known for their tough hides that only first-class equipment could pierce, were helpless. They quickly turned into burned charcoal, falling one after another with wailing and screams.
Clearly, it was only magic unleashed by a Level 3, but it incinerated a vast group of monsters that even Level 5 would find challenging.
This was Lefiya's magic.
Her excessively outstanding 'MAG' and the support of skills allowed this Level 3 Elf to burn through a large group of monsters spanning two levels.
As long as she could chant magic steadily and release it steadily, she would be stronger than the average Level 5.
In the past, due to mental immaturity, she couldn't achieve stable magic chanting. But now, this flaw had gradually improved through continuous coordination with Riezel.
"So hot!"
"Waaah!"
"Ugh..."
One after another, Tione, Tiona, and Ais escaped from the sea of fire, and the deep green light membrane on their bodies gradually disappeared.
"Sorry!"
Done chanting, Lefiya finally opened her eyes, realizing that she had almost affected everyone, and started to panic.
"Don't worry, they're fine." Riezel, as if expecting this outcome, reassured her.
The magic he used, known as 'Raumure', not only enhanced the speed but also excelled in defense.
It was a protection magic he unexpectedly learned from someone else, reinforcing 'END' and significantly strengthening 'AGI'.
The effect of magic was proportional to the user's 'MAG'. With Riezel's SSS-rank in 'MAG' at every level, plus his current level's 'MAG' in S-rank, it yielded surprisingly good results.
With the amplification from the 'Mage' development ability, when Riezel cast protection magic, even the somewhat minor enhancement of 'END' that 'Raumure' originally had was remarkably impressive.
Thanks to this, even if the girls were hit directly by Lefiya's 'Fusillade Fallarica', they wouldn't suffer heavy injuries, only being affected slightly, which wouldn't harm them at all.
'Raumure' was a magic mentioned in the original work, and Riezel coincidentally remembered its detailed effects. Therefore, as long as someone cast this magic in front of him, he could witness it with his own eyes and memorize it with 'Almighty' to effortlessly learn it.
Recently, when Loki Familia was preparing for the expedition, Riezel happened to see the user of this magic in the middle floor of the dungeon, using it right in front of him.
Thus, he easily acquired this protection magic and ultimately possessed ten types of magic, surpassing Nine Hell Riveria, who possessed only nine.
Naturally, no one knew about this.
"What kind of magic is this?"
Tiona and Tione returned, looking at the gradually disappearing light membrane on their bodies with great astonishment.
Ais also gazed at him, her eyes full of curiosity.
They couldn't help but be bewildered, the magic just now was powerful. Although not on the level of overpowered enhancement like 'Ariel', it was still quite astonishing magic, making Ais feel that her strength had soared when influenced by it.
"Just a magic I unexpectedly learned."
Riezel didn't explain too clearly because he saw monsters being attracted by the commotion they caused, seemingly approaching.
"Let's leave here first."
He stopped his magic circle and spoke seriously to everyone. Although the girls were curious, they had to suppress their curiosity and quickly follow his footsteps, leaving.
Before long, numerous monsters appeared, roaring while lingering at the edge of the sea of fire.
The sea of fire burned slowly as if it would never extinguish, dispelling the darkness inside the labyrinth.