The F-rank Adventurer, Who Was Supposed to Be Just a Helper, Accidentally Goes Viral for Blowing Away an S-rank Monster – It Seems the Home I’ve Been Living in Was an Unusually Powerful Dungeon Inhabited by the Strongest Species

“Quooooon!!”

The white puppy, Cotton Candy, howled. As a response, its body grew larger and more robust.

Then,

“Woaaaan!”

Out of nowhere, thunder struck Cotton Candy. The booming sound and the shockwave reverberated throughout the dungeon.

“Woof.”

With sharper eyes now, Cotton Candy gazed intently at the Wyvern, exuding the aura of a ruler.

The electric current from the thunder made its fluffy fur stand on end, crackling around its body. It looked as though it was clad in thunder itself.

This was Cotton Candy’s form when battling.

“Whoa!?”
“What’s this!?”
“It’s gotten bigger!!”
“So cool!”
“Crackling!”
“Wait, is this…”

The comments section transformed with this metamorphosis. The tone shifted from “cute” to “cool,” much like when Melon had grown.

“Cotton Candy, look this way.”
“Woof.”

Cotton Candy faced the camera, accelerating the comments even further.

“This form!”
“Fenrir!?”
“It’s Fenrir!”
“I knew it!”
“Seriously!?”
“It’s not just a puppy, lol.”
“Bringing a legendary creature for a walk, lol.”

“…Eh? Fe, Fenrir?”

But I was clueless about what they meant.

“Here we go again, lol.”
“Saw this before.”
“He didn’t know it’s Fenrir.”

Not sure what they expected, but I asked plainly.

“Um, what’s Fenrir?”

“!?”
“That’s your reaction!? lol”
“He doesn’t even know what Fenrir is.”
“You’re a Fenrir, not ‘what’s Fenrir.'”

“Woof…”
“Sorry, sorry, didn’t mean that.”

“Cotton Candy’s crying.”
“Doesn’t know its own species, lol.”
“Poor thing.”
“It’s a legendary species, you know?”

“Eh, a legendary species? Cotton Candy is?”

“Yes!”
“S-rank monster!”
“On par with dragons.”
“I think Fenrir is faster.”
“Strength in dragons, speed in Fenrir.”
“One of the strongest.”

Surprised by the information, I expressed my awe.

“Wow, you’re amazing, huh!”

“Hey, lol.”
“Son Goku vibes, lol.”
“Saiyan much? lol.”

“If that’s the case! Go, Fenrir! You can do it, Fenrir!”

“Suddenly using it, lol.”
“Repeating it, lol.”
“Pokémon battle much? lol.”
“Like a kid who learned a new word.”

“Woof!”

Cotton Candy tensed its limbs.

“Gyaaoo!!”
“Woaaaan!”

The Wyvern and Cotton Candy roared at each other, ready for battle.

“Uuh…”

Who would make the first move? Amidst the mutual scrutiny, Cotton Candy vanished.

“Woof!”
“—Gyao!?”

In the next moment, the Wyvern was slammed forcefully onto the ground, and Cotton Candy appeared where the Wyvern had been.

“!?”
“Ha!?”
“What just happened!?”
“Didn’t see anything!”

“Wow. Used the walls for a back attack.”

“Eh?”
“You saw that? lol”
“How did you see that? lol”
“Hoshi can actually follow it, lol.”
“I couldn’t follow at all.”
“The camera couldn’t keep up either.”

“Huh?”

Seems like no one else saw it. Perhaps the camera couldn’t keep up. Maybe it’s malfunctioning… Hang in there, camera.

“Gya, Oo…”
“Woof.”

The Wyvern, trying to stand up again, apparently wasn’t completely subdued.

“Kind of feel sorry for it.”
“Go, Wyvern!”
“Stand up! Wyvern!”

“Hey, you’re cheering for the wrong side!?”

And somehow, this developed into cheering for the Wyvern.

“Go, Cotton Candy!”
“Is this too easy?”
“Too strong.”
“Equal to Melon…?”
“Maybe.”
“Seriously the strongest.”

Well, most viewers were cheering for Cotton Candy. Cheering for the Wyvern must be their way of having fun. Let’s think of it that way.

“Gyao…”
“Woof…”

The Wyvern managed to stand up. Cotton Candy crackled with electricity, watching intently.

“This will be the finisher.”

I said what I felt from the atmosphere.

At almost the same time, the Wyvern opened its mouth wide.

“—Gyaaoo!”

It was the Wyvern’s signature “Fire Breath,” seemingly exerting its full strength.

Cotton Candy, in a low stance,

“—!”

Vanished again in an instant.

“Woof!”

The next moment, it was on the far wall. Then on the opposite wall. Next, the ceiling, the ground, another wall.

Repeating this,

“—Woaaaan!!”

Cotton Candy sprinted across the floor, vertically and horizontally.

“Woof!

Ha! Woan!”

Its movements were too fast, almost like it was duplicating.

Not just two or three, but it seemed like there were ten or twenty Cotton Candies.

The fastest among my pets, Cotton Candy’s unique feat.

“Whoa!?”
“Amazing!!”
“Can’t see! But I can!”
“Not really duplicating, right!?”
“There must be ten of them!”
“Too incredible!”

The viewers seemed amazed.

“Cotton Candy!”
“Woof!”

Then, I called out. Cotton Candy’s special move. I pointed at the Wyvern and exclaimed.

“Cotton Candy Rush!!”
“—Woaaaan!!”

Cotton Candy, seemingly multiplied, all charged at the Wyvern at once.

“Gyaaoo!!”

The massive fireball vanished instantly, and the Wyvern was spectacularly defeated. Victory for Cotton Candy.

“Great job, Cotton Candy!”
“Woan!”

Cotton Candy, still in its large form, came closer. I hugged and stroked its head.

Then, I realized something shocking.

“Eh!!”

The camera showed “300,000 viewers.”

“300,000!? Thank you so much!”

“Whoa!?”
“Really amazing!”
“Didn’t notice during the battle!”
“Congratulations!”
“Congratulations!”
“300,000 congrats!”

Most people hadn’t noticed until now, and a wave of congratulations came in. Amazing, I’m so happy.

“It’s all thanks to you, Cotton Candy.”
“Woan… Woof!”
“Ha ha, back to small, huh?”
“Woof.”

With the enemy gone, Cotton Candy shrank back to its puppy form and jumped into my arms. So adorable, this one.

So, holding Cotton Candy, I faced the camera again.

“How was it? Seeing Cotton Candy fight?”

“Too awesome!”
“Insane!”
“So exciting!!”
“Cotton Candy’s strong too.”
“That’s Fenrir.”
“Speed is an amazing weapon.”

“See, Cotton Candy? They liked it.”
“Woof.”

I stroked its head, and it rubbed its face against me, asking for more.

Hard to believe it’s the same brave creature from before. But that’s the charm.

“Kyaa!”
“So cute!!”
“Rubbing its face!”
“Such a gap.”
“Cool and cute, unfair.”
“How can you not be a fan?”

I’m happy when Cotton Candy gets praised.

Right, I need to ask about that too!

“Cotton Candy Rush was cool, wasn’t it?”

“Well…”
“Cool, but…”
“Hmm.”
“Yeah, sure (monotone).”

“Ueeeh!?”

But the reaction was unexpected. I thought it was a perfect name.

“But that’s what makes it good, lol.”
“Definitely Hoshi-like, lol.”
“Kind of cute.”
“Too cute for a Fenrir, lol.”
“It’s a legendary species, after all.”
“Kind of fitting in a way, lol.”

“Don’t know if I should be happy…”

Well, it’s accepted, at least. I’ll keep using “Cotton Candy Rush.”

Then, a comment caught my eye.

“How did you return last time?”

“I carried Nanami back last time. She seemed mentally exhausted.”

“Kind.”
“Unexpectedly capable.”
“Definitely smitten.”

Last time I was here, I turned back at this spot. But something was already clear then.

I looked deeper into the dungeon.

“There seems to be deeper levels here.”

“Eh?”
“Really?”
“But this is an S-rank dungeon, right?”

“Yes, it is.”

As the comments and Nanami had mentioned, this “Winged Dragon Dungeon” is an S-rank dungeon. The highest rank among dungeons.

And this place, easily accessible via the warp floor, is the “lower level.” The next level is obvious.

“I’d like to explore the ‘deeper levels.'”

“Deep levels…”
“That’s where it’s headed.”
“Is that safe?”
“Well, if it’s Hoshi-kun…”
“But it’s the deep levels.”
“As an explorer myself, I advise against it.”

As I mentioned this, naturally, there were voices of opposition. I had briefly researched the deep levels.

Dungeons have layers: upper, middle, lower. The deeper you go, the harder it gets.

Some dungeons have a “deep level,” almost a different world, with a significant increase in difficulty.

“Hmm, but it should be fine.”

If Wyverns are this level, I doubt there’s much to worry about. Everyone’s too fearful.

“Wait, wait.”
“This is an S-rank dungeon.”
“Has anyone cleared the S-rank deep levels?”
“Probably not.”
“Even for Hoshi-kun…”

“Alright. Understood.”

If that’s what everyone says.

“Just the tip!”

“Hey!?”
“Someone stop him!”
“That’s the least trustworthy phrase, lol.”
“The worst line to trust, lol.”
“Unaware as usual, lol.”