The Fukaros Familia, starting from DanMachi.

Lily Luca's professional smile froze.

A flicker of surprise crossed her large eyes, quickly replaced by deep disappointment.

She lowered her head, biting her lip tightly, looking dejected and pitiful.

The robin standing behind Burning Feather saw all of this.

A hint of reluctance flashed in her lake-green eyes.

With her kind heart, she would love to lend a helping hand to this seemingly pitiful girl if she could.

However, it is actually the leader of the Fukaros Familia.

Robin believes that he must have had his own reasons for making this decision.

She wouldn't interfere with any of Fen Yu's decisions just because she felt a little soft-hearted.

She simply stood there quietly, expressing her unconditional support through silence.

Fen Yu's refusal was decisive and clean, leaving no room for negotiation whatsoever.

Lilyluka Erd stood frozen for a moment, then turned away dejectedly and disappeared into the noisy crowd.

Fen Yu didn't look at her again and led the Robin straight into the entrance of the underground city.

The spiral staircase extends downwards, isolating the noise of the surface world from the outside.

The air inside the cave, unique to the cave and mixed with the scent of earth and faint magic, enveloped the two of them.

The robin followed quietly behind Fenyu, without asking any questions about his decision.

But Fen Yu still took the initiative to explain.

"Among the supporters, there are good and bad, and quite a few have ulterior motives. They are attached to the adventurers, but they may also become the biggest hidden danger at critical moments."

He paused, then lowered his voice even further.

"Moreover, because of my skill, we are likely to frequently encounter some... special monsters. If there are always outsiders around, my secret will be exposed sooner or later."

"Teaming with outsiders risks exposing our abilities and information. In this place, the more trump cards you have, the longer you can survive. So, it's best to avoid teaming up with outsiders if possible."

Finally, he added meaningfully, "You can know a person's face but not their heart; never judge a person's good or evil based on their appearance."

He was subtly reminding the robin that the seemingly pitiful dog-woman girl might not be as simple as she appeared.

The robin was so intelligent that it understood the deeper meaning in Burning Feather's words almost instantly.

Although she didn't know the specific reasons, she unconditionally trusted Fenyu's judgment.

She simply nodded slightly to indicate that she understood.

The two walked briskly, chatting as they descended, and soon reached the second level.

Just then, Fenyu once again felt that familiar feeling of being "watched" by the dungeon.

The walls began to ripple, and new monsters were conceived, hatched, and then fell from the stone walls.

It's still slimes and hilichurls.

In addition to the fire slime, there also appeared a wind slime that was entirely green and exuded a breeze-like aura, and a rock slime that was encased in a hard rock shell.

The variety of Hilichurls has also increased.

In addition to the basic type wielding a wooden club, there also appeared a Hilichurl with an archery quiver and a simple wooden bow, as well as a Hilichurl with a wooden shield in its left hand and a stone axe in its right.

Fen Yu was already quite familiar with these monsters.

Faced with a rolling rock slime, Fenyu didn't try to slash it head-on with his sword like he did yesterday.

The hard rock shell caused too much wear and tear on the weapons.

This time, he held nothing back.

"Deep within the lake of my heart, ripples of the past stir—"

With a brief incantation, a fleeting glimpse of pale blue light appeared on his body.

Then, he raised his hand, aimed it at the rock slime, and uttered a simple yet terrifyingly powerful word.

"Gospel."

An almost inaudible noise transformed into an invisible cannonball and blasted out instantly.

The rock slime's hard shell was as fragile as paper in the face of this sound wave, and it was instantly shattered into dust along with its magic stone core.

Not far away, several archer Hilichurls were preparing to draw their bows and fire.

Fen Yu shifted his gaze and spoke again.

"Gospel."

The invisible sound waves spread out in a fan shape, sweeping over the few Hilichurls.

Their bodies jolted violently, then as if struck by an invisible giant hammer, their bones shattered inch by inch, blood spurted from their mouths and noses, and they collapsed limply to the ground, dying instantly.

This terrifying and bizarre destructive power even made the robin standing nearby turn its head in surprise.

While both are sound magic, her [White Whisper of Wings] has strong penetrating power, but its effect is more inclined towards "cutting" and "piercing", far less ferocious and domineering than the spell Burning Feather.

Even Fen Yu himself was startled by the magical power belonging to Alphia.

As expected of her, every spell she uses is extraordinary, and its destructive power is beyond the norm.

But now, all that magic belongs to him.

After the magic was used, these upper-level slimes and hilichurls could no longer pose any obstacle to the two.

Fen Yu didn't even need to draw his sword; he simply repeated the word "Gospel" repeatedly, and hordes of monsters vanished into nothingness.

Robin occasionally takes action, using a sonic wave to precisely eliminate monsters attacking from blind spots, but most of the time, she dutifully plays the role of supporter, following behind Burning Feather and helping to pick up fallen magic stones and materials.

The two made rapid progress, quickly passing through the fifth floor and arriving at the entrance to the sixth floor.

Unlike the narrow and monotonous caves of the upper level, the sixth level is a bright and open space.

This is a huge domed cave with a ceiling tens of meters high, adorned with phosphorescent moss, like stars in the night sky.

The ground is no longer a flat dirt road, but has become rugged and uneven, with huge stalagmites and stalactites interspersed, forming a natural maze.

The air became more humid and chilly, with water droplets falling from above from time to time, making a crisp "drip-drip" sound.

The moment they stepped into this area, a new enemy appeared.

From behind the giant stalagmite, several enormous slimes, each the size of a calf, rolled out.

These are a large fire slime burning with raging flames, a large ice slime covered in thick ice armor, and a large rock slime made of a single giant rock.

They were larger and emitted stronger magical energy; the sheer force of their rolling motion was terrifying.

Meanwhile, on a distant stone platform, several Rocket Hilichurls appeared, wielding crude crossbows and carrying arrows with small fire slimes attached.

"call out!"

With a whooshing sound, several burning arrows, trailing long flames, shot towards the two.

In front of them, several charging Hilichurls wielding burning wooden staffs let out strange cries, took off, and launched a straight-line charge.