Highschool DxD: Damn, I'm OP as Fuck!

Before diving into chapter 13, please read the author Note first because it contains an important message for you all <3

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Ais's golden eyes narrowed, her expression unreadable.

She wasn't alone—everyone in the Loki Familia was staring ahead, their attention locked onto one person.

A young man.

Kenji.

Amidst a sea of monsters, he moved like a phantom—dodging, weaving, and countering the attacks of dozens of creatures at once.

"Who is that?"

Finn, the Pallum captain of the Loki Familia, observed with interest.

His sharp mind quickly analyzed the situation.

"For a lone adventurer to fight this way… Is he a new Level 5? Or even Level 6?"

Riveria, the Nine Hells, nodded.

"He's too skilled to be a rookie. Even most Level 5 adventurers wouldn't handle a battle like this with such ease."

Ais remained silent.

She simply watched.

---

Meanwhile—Kenji felt the shift.

More monsters had appeared—over thirty Minotaurs, alongside hordes of Killer Ants, Poison Lizards, and Goblins.

Even for him, it was getting too crowded.

And—he wasn't alone anymore.

He could feel Ais and the others watching.

Kenji sighed. "Guess that's enough warm-up."

---

Loki Familia's Concern

Tiona, the Amazon warrior, smirked.

"That kid's gonna get overwhelmed soon."

Tione crossed her arms. "Should we help him?"

Finn nodded slightly.

"If things get bad, we step in."

But then—

Kenji moved.

---

Kenji suddenly leaped into the air—four meters high.

His hands moved at blinding speed, forming a series of hand seals.

Then—

"Fire Release: Great Fireball Jutsu!"

He exhaled.

A massive fireball, nearly five meters wide, roared from his mouth.

It crashed into the monster horde, exploding on impact.

BOOM!

A wave of scorching heat erupted, flames engulfing everything.

The monsters shrieked, their bodies burning to ash.

In an instant—one-tenth of the entire monster wave was annihilated.

---

Tiona's eyes widened. "Whoa! That was insane!"

Tione whistled. "Did not expect that."

Finn raised an eyebrow. "That wasn't just magic… He didn't chant at all."

Riveria's sharp eyes narrowed.

"No incantation. No delay. A pure, instant cast… Is that a lost form of magic?"

Among all adventurers in Orario, magic required chanting.

Even the most skilled magicians could only shorten incantations—not erase them completely.

But Kenji—

Kenji had just broken that rule.

Ais gripped her sword tighter.

She was interested now.

---

Kenji landed gracefully, but he wasn't finished.

His right hand gripped his Nichirin Blade.

Then—

He vanished.

"Thunder Breathing: First Form—Thunderclap and Flash: Sevenfold!"

A streak of yellow lightning tore through the battlefield.

Kenji reappeared instantly—his sword slicing through five monsters at once.

Then—

"Second Form: Rice Spirit!"

A blinding slash, cutting through a Minotaur in one strike.

"Third Form: Thunder Swarm!"

A series of rapid, consecutive attacks, taking down another group of monsters.

Kenji didn't stop.

Fourth Form: Distant Thunder.

Fifth Form: Heat Lightning.

Sixth Form: Rumble and Flash.

Each move faster than the last—unstoppable, precise, and overwhelming.

Then—he finished it.

Kenji exhaled sharply.

"Seventh Form: Honoikazuchi no Kami."

A massive thunder dragon erupted from his blade, roaring across the battlefield.

BOOM!

The entire area was illuminated in golden lightning.

And then—

Silence.

The battle was over.

Kenji stood alone, surrounded by nothing but magic stones.

---

Clap. Clap. Clap.

A slow applause echoed through the dungeon.

Kenji turned—his eyes meeting Finn's.

The Loki Familia was approaching.

Finn smiled. "That was impressive."

Kenji relaxed slightly. "Didn't notice I had an audience."

Finn chuckled. "We were going to help, but… clearly, you didn't need it."

Kenji glanced at his bag—already full of loot.

But there were still too many magic stones.

That's when Tiona stepped forward.

"Here! Use this."

She tossed him a fresh sack.

Kenji caught it, blinking in surprise.

Tiona grinned. "You looked like you needed it."

Kenji nodded. "Thanks."

Then—he turned back to Finn.

"Kenji. Hestia Familia."

Finn's eyes lit up with interest.

"Hestia, huh? Now that's surprising."

Kenji smirked.

"Yeah. We're small. But I plan to change that."

Finn grinned.

"I believe you."

And with that—Kenji gathered his loot, ready for what came next.

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