The Protagonist's Sister Is Actually The Strongest

I will prove to Vulcanus that I am no “inferior primate.”

“{Starlight Slash Nebula Echo}: {Starlit Isolation}!”

FLAAASH!

All the energy converged at a single point, striking the monstrous, hulking creature mere seconds from attacking us.

And…

BOOOMMM!!!

I unleashed the full brunt of energy and kinetic force from my techniques, obliterating the monstrous beast and everything in its vicinity.

Dozens of creatures were hurled away, their explosions paling in comparison to the devastation I wrought, as they crumbled into fragments in the forest below, triggering a cascade of further detonations.

“Anna…!”

Jack gazed at me in astonishment. He had finally witnessed the extent of my newfound prowess, and even then, I’m fairly certain that wasn’t the full scope of my capabilities.

“See, brother? I’m quite dependable now, don’t you think?”

“Hah… Yeah, you’ve left me speechless… honestly.”

His eyes blazed with a vivid crimson glow, as his sword abruptly extended tenfold in length. Kamikaze swarms surged toward him from below, while larger beasts descended from above.

“Well done.”

SLAAASH!

He spun gracefully in midair, unleashing a crescent-shaped slashing attack that cleaved every monster within a second, sparking dozens of simultaneous explosions.

BOOM! BOOM! BOOM!

Oh wow!

I can’t believe I witnessed that live!

This is one of my brother’s most iconic swordsmanship techniques.

The Dark Moon Sword Art!

It was likely the Half Moon Scythe, a technique that rends anything within a twenty-meter radius around him.

It’s a taxing maneuver for him, but it’s incredibly impressive!

“Perhaps you’ll soon reach my level,” he said with a warm smile.

“Hahaha! I hope so… but you’re still phenomenal!” I said.

Yeah, if it wasn’t obvious enough, I was my brother’s biggest fan…

A sister can indulge in such admiration. It’s only natural, okay?

He’s just so cool!

Even though I despised how the Author exploited that “coolness” to reduce him to an emotionless husk later on…

Ahem, anyway, it appears the creatures’ numbers have dwindled.

“Anna! Come look at this!” Hilda called out to me.

“W-What is it?” I wondered, soaring to her side. “Huh?!”

We peered below, where the trees began to shift on their own. The ground beneath them quaked, as something colossal emerged from within.

RUMBLE!

Countless explosions echoed through the forest, as a gargantuan turtle-like creature surfaced, its draconic visage striking. Its shell spanned at least a third of the entire forest?!

So this whole time, the forest rested atop this monster’s shell?!

And…

It had cavities from which Kamikaze Beasts kept crawling out!

“That thing is definitely the area boss!” Annabelle declared. “We gotta slay that!”

“Yeah!” Kevin nodded. “But it’s massive…!”

“Just like the other one, it’s nothing we cannot handle…!” Henrietta said.

“But there are too many bugs everywhere. It’s not going to be easy, you know?” Hilda asked.

“We have to find a way!” Baihe said. “Ah, right…! Anna! Go with your brother to slay that thing! If it explodes, who knows how massive that explosion will be! Like an atomic bomb or something!”

“No, we have to stay and protect you,” Jack said. “We have to—”

“Sure!” I interrupted his words. “Let’s go, Jack!”

“Anna, I need to stay here to protect Henrietta!” my brother insisted.

“I’ll be fine, Jack! Just go!” Henrietta said.

“Violet, Shiro, protect them! Snow, come with us!” I commanded.

“WOOF!”

Snow barked loudly like an eager puppy, rushing to my side as he allowed my brother and me to ride him, charging through the blazing skies.

“Anna…” my brother seemed hesitant, but ultimately, he fixed his gaze on the prey. “Fine, let’s finish that thing quickly! I now know I don’t have to worry about you… too much. With your strength, we can do this!”

“That’s the spirit!” I exclaimed joyfully. “Fenrir, can you use your chains to halt that thing’s movement? It’s trying to fly despite its immense size!”

“I can bind its head, and then with Jack, we’ll force it back to the ground!” Fenrir said. “Hmm, maybe if you assist, it’ll be easier!”

“Sure thing!” I said. “Snow, you know what to do, boy!”

“AWOOOOO!”

Snow unleashed a resonant howl, his Aura surging with immense magical power fused with Ki. This energy manifested as a snowstorm, enveloping us as we navigated the flames of the Kamikaze Beasts.

Because they were all clustered in one area, their auras formed vast seas of flames. Passing through them could scorch our Auras and weaken us due to the intense concentrations of Draconic Mana.

Thus, with Snow by our side, we no longer had to fear being diminished or hindered by those searing flames.

And…

“{Divine Thunder God Body: Raijin’s Embodiment}!”

ZAAAP!

My entire body was swiftly enveloped in lightning, as I harnessed the power of my Skill to embody a Thunder God.

The synergy of the [Celestial Body (A)], [Thunder Queen (S)], and [Spectral Body (S)] Skills combined their effects, amplifying them to extraordinary heights.

With that, I leapt off Snow momentarily and struck the drums behind my back with rapid hand movements.

BAAM!

BAAM!

BAAM!

“{One Hundred Thunderstorms: Kaminari}!”

RUMBLE!

One hundred lightning bolts erupted from my body, striking incoming Kamikaze Beasts and shattering them into fragments. The lightning was so potent and deafening that it tore the skies asunder, dispersing the black clouds conjured by the monster below.

“Anna, just how many Skills did you have saved? How did you even…?!” Jack was left speechless, but he knew time was short.

“I’m sure you’ve got plenty of skills you’ve never shown me either, brother!” I said. “I’ll explain later, so don’t worry! It’s coming!”

“ROOOAAARRR!”

The monstrous turtle-like draconic beast reached us, as we realized it dwarfed the previous boss we fought, exceeding six hundred meters in height.

Worse still, it channeled the explosive flames of the dynamite tree forest within its shell and unleashed them through its jaws, releasing a cataclysmic breath attack!

BOOOM!

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