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High School DxD: Return of the Crimson Dragon Emperor

Chapter 267 - 257 T·O·S Activated!! · Oct 23, 2026

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Chapter List (557)

Page number / 12

251 Chapter 251 - 241 Common Ground 2026-10-23
252 Chapter 252 - 242 To the Underworld School! 2026-10-23
253 Chapter 253 - 243 Believe! 2026-10-23
254 Chapter 254 - 244 Looming Malice 2026-10-23
255 Chapter 255 - 245 The Spear of Malice 2026-10-23
256 Chapter 256 - 246 Defense Battle Begins! 2026-10-23
257 Chapter 257 - 247 The Power of the Minions 2026-10-23
258 Chapter 258 - 248: Reinforcements Have Arrived! 2026-10-23
259 Chapter 259 - 249: The Binding Trap and the Red Spear 2026-10-23
260 Chapter 260 - 250: The Fierce Battle Continues! 2026-10-23
261 Chapter 261 - 251: Tiamat and the Casual Retreat 2026-10-23
262 Chapter 262 - 252: Taking Down the Evil Dragon! 2026-10-23
263 Chapter 263 - 253: The Soul-Erasing Slash 2026-10-23
264 Chapter 264 - 254: The Black Dragon Awakens! 2026-10-23
265 Chapter 265 - 255: Saji’s Fiery Confession 2026-10-23
266 Chapter 266 - 256: I’ll Save Her No Matter What! 2026-10-23
267 Chapter 267 - 257 T·O·S Activated!! 2026-10-23
268 Chapter 268 - 258 An Unexpected Candidate! 2026-10-23
269 Chapter 269 - 259 Proposal 2026-10-23
270 Chapter 270 - 260 Miha’s Reminiscence 2026-10-23
271 Chapter 271 - 261: The True Crimson Sekiryuutei 2026-10-23
272 Chapter 272 - 262: True Dragon, Ultimate Siscon! 2026-10-23
273 Chapter 273 - 263: T·O·S Ignition!! 2026-10-23
274 Chapter 274 - 264: An Unexpected Candidacy! 2026-10-23
275 Chapter 275 - 265 A Proposal 2026-10-23
276 Chapter 276 - 266: From President to Sona-san 2026-10-23
277 Chapter 277 - 267: Impulsive Rose and the Gods’ Proposal 2026-10-23
278 Chapter 278 - 268 Miu’s Reminiscence 2026-10-23
279 Chapter 279 - 269: Tears of Joy and a Soft Laugh 2026-10-23
280 Chapter 280 - 270 Establishment! Hyoudou Issei Peerage Office! 2026-10-23
281 Chapter 281 - 271: The Useless Goddess’s Blueprint 2026-10-23
282 Chapter 282 - 272 With Alice-san 2026-10-23
283 Chapter 283 - 273: A Thousand Points for the Naked Apron 2026-10-23
284 Chapter 284 - 274: Christmas Present Received! 2026-10-23
285 Chapter 285 - 275: Winter Break Begins! 2026-10-23
286 Chapter 286 - 276: Christmas Project, Launching Now! 2026-10-23
287 Chapter 287 - 277: To Heaven We Go! 2026-10-23
288 Chapter 288 - 278: The Heavenly Doorknob 2026-10-23
289 Chapter 289 - 279: Memories of Childhood Days 2026-10-23
290 Chapter 290 - 280: The World of Starry Night 2026-10-23
291 Chapter 291 - 281 The Avenger 2026-10-23
292 Chapter 292 - 282 The Torn Pair 2026-10-23
293 Chapter 293 - 283 Smiling Onward! 2026-10-23
294 Chapter 294 - 284 Shaking Heaven 2026-10-23
295 Chapter 295 - 285 DxD Deploys, Even in Heaven! 2026-10-23
296 Chapter 296 - 286 The Holy Spear Returns 2026-10-23
297 Chapter 297 - 287 Go On Ahead! 2026-10-23
298 Chapter 298 - 288 Absurdity 2026-10-23
299 Chapter 299 - 289 Showdown with the Evil God! 2026-10-23
300 Chapter 300 - 290 The Path of Atonement 2026-10-23

Chapter 267: Chapter 257 T·O·S Activated!!

The silver-haired man lay sprawled across the ground.

My iron fist had stripped him of his armor entirely. Blood streamed from every limb, and he showed no sign of rising.

He was out cold.

The area around Eugrit had been reshaped by the shockwave of my punches—a massive crater now scarred the earth, the terrain utterly transformed.

That felt good.

Ddraig had been pissed, so yeah, I let loose.

For now, I’d beaten the crap out of him. Mission accomplished, right?

The Red Dragon Emperor belongs to us alone... right, partner?

”Yeah. We’re the only ones in the world who get to call ourselves that.”

Ddraig’s voice carried a rare note of satisfaction.

”Ise-kun...”

Rossweisse approached, her steps light.

The magical ropes Eugrit had bound her with were gone—Rias must have undone them.

I released my armor and flashed a grin.

”It’s over, Rossweisse. Let’s head back to the others.”

”Y-Yes!”

The weight that had clouded her face was gone, like a curse lifted.

Whoa—my legs wobbled.

Rias caught me as I staggered.

”You okay, Ise?”

”Haha... That ultimate move took a lot out of me...”

The technique forces chi past my limits, so the aftermath always hits hard. I’d need rest.

”You pushed yourself beyond reason,” Rias said. ”Rossweisse, can you take his right side?”

”Y-Yes, ma’am!”

Rossweisse moved to support my shoulder.

That’s when it happened.

”Mmm, nice work, hero boy. Took him down in the blink of an eye.”

A third voice rang out across the battlefield.

I whipped around. There stood the white-haired boy—Asem!

Cold sweat broke out as I glared.

”You pick now to show up?!”

Wasn’t he with Rizevim?!

No—the timing was the real killer. I was drained dry. Rias and Rossweisse couldn’t hope to match him.

Asem smiled, all sunshine.

”Don’t worry, don’t worry. It’s too early for me to fight you directly.”

”Then why the hell are you here?”

”Hmm... call it a little extra stage?”

Magic circles bloomed across the sky—summoning arrays.

Light flared, and they appeared.

We were speechless.

”No way... They’ve already mass-produced this many?!”

Rias’s eyes widened.

Twenty sets of Red Dragon Emperor armor hovered before us.

Twenty copies—already?!

Asem chuckled.

”This is the final battle. Can you overcome it? Good luck~”

He vanished in a teleport circle.

That bastard...!

I’d just burned through my ultimate, and now this?!

Rossweisse stepped forward.

”I’ll stay! Rias, take Ise-kun!”

”Are you insane?! Each one has Ise’s full power! We—”

One of the copies fired a crimson blast straight at us.

Rossweisse threw up a barrier, but it wouldn’t hold.

I forced my screaming body into motion, scooping Rias and Rossweisse and leaping back.

We barely dodged—gah!

Pain lanced through me.

The cost of the ultimate, huh...

”Ise!”

Alice, Miha, and Ravel flew in from behind, landing hard.

”Alice—the others?”

”We wrapped things up. The evil dragon was almost done, so we came... perfect timing, it seems.”

Alice’s face darkened as she took in the twenty armors floating above.

We’d expected copies, but this soon?

Twenty of me in armor. Twenty Maou-class threats.

Sweat rolled down Miha’s cheek.

”How... are we supposed to...?! We can’t win with just us!”

I was spent. Everyone else was exhausted. Even if the school team arrived, reversal was unlikely.

The underworld army wouldn’t reach us in time.

What do we do...?!

Everyone racked their brains for a way out.

Then—

”Master! Master!”

Huh? The past female Red Dragon Emperors?

What’s up? We’re kinda in a pinch...

The male emperors chimed in.

”This is when you shine!”

Elsha and Belzard followed.

”The source of your evolution has always been right there.”

”You’ve escaped crises with it before. Isn’t this the same?”

Wait—don’t tell me—

”””YES! NOW IS THE TIME TO TOUCH BOOBS! EVOLVE WITH NYUU-POWER!”””

WHAT THE HELL?!

Even I have to ask—are you people sane?!

Sure, I poked Alice’s boobs to reach Juggernaut! Sure, Alice and Rias gave me new possibilities!

But nyuu-power?! I’ve never heard of that!

Rias tilted her head, puzzled by my internal meltdown.

”Ise? What’s wrong?”

”...Hear me out calmly, okay?”

”Of course. We need to stay level-headed.”

”...The past emperors say I should borrow the power of boobs.”

”...”

Rias froze.

Yeah, that’s the normal reaction!

Alice grabbed my collar.

”Again with the boobs?! You’re making the same mistake?!”

”Wait! It wasn’t me! I didn’t say it—don’t hit meeee!”

One Alice punch in this state and I’m dead!

The emperors barreled on.

”Now’s the perfect chance!”

”Two Switch Princesses! Double Switch!”

”Nothing could be more reassuring!”

Why are you getting excited?!

Ignis spoke, as if realizing something.

”...You can’t mean that? It’s still theoretical. Success is uncertain...”

”No, Goddess! If anyone can do it, it’s them! We believe in them!”

Uh... I’m lost. What exactly do you want me to do?

It’s not just ”poke like usual,” right?

”Exactly... Alice-chan, Rias-chan—two Switch Princesses from different dimensions. And the Breast Dragon who turns impossible into possible...”

Ignis’s voice was dead serious. That scared me more.

She materialized beside me, looking from me to Alice to Rias.

”All three of you—listen carefully. Only your cooperation can change this. Do exactly as I say.”

She paused, eyes steady.

”Ise—suck both their breasts. At the same time.”

”...”

Our brains blue-screened.

A few seconds later—

”””EEEEEEEEEEEEEEEEEEEEEH?! HERE?! AND SUCK?!”””

Our voices overlapped in perfect harmony.

Of course they did!

You’re telling us to suck—both—right here?!

I blurted out the obvious.

”Why suck?! And both at once?!”

”My theory—T·O·S: Twin Opai System. By synchronizing the nyuu-power of two Switch Princesses, it doesn’t double—it squares. Output beyond anything before. Still theoretical, but the math checks out.”

”How do you say that with a straight face?! Synchronize nyuu-power?! You calculated this?! What’s in your head?!”

”Just drink their milk at the same time. Swirl it properly with your tongue.”

”TOO VIVID!”

This damn goddess!

Look—your intensity is pushing them!

”U-Um, Rias-san... what do we do?”

”I... If it’s the only way... and it’s Ise...”

They’re giving in!

Is this really okay?! Here?!

Ravel shouted.

”Ise-sama! The copies!”

I looked up—all twenty had shifted to Heavenly Strike armor, cannons aimed.

They were going to fire in unison. That’d level the whole area—and the school!

Ignis yelled.

”Hurry! Only T·O·S can save us!”

Stop calling it that!

Twin Opai System—what kind of name?!

But if we don’t act, the school—

Screw it—desperation time!

I grabbed Alice and Rias by the shoulders.

”Alice! Rias! Let me suck your boobs!”

▼

”Nyah... Rias-san’s nipple is rubbing... nnh...”

”A-Ah, Alice-san... if you move like... ahn...”

Alice and Rias, clothes off, pressed chest-to-chest.

For me to take them both at once.

Rias’s full, ripe breasts. Alice’s, finally filling out.

They trembled with each breath.

Cheeks flushed, eyes glassy—embarrassment, and maybe anticipation.

At least only women were watching.

Well...

”Th-This is so lewd...! Uwah... so shameless... so erotic...”

Rossweisse covered her face—but peeked through her fingers. And slipped into dialect.

I pulled them close by the waist.

”...You both ready?”

”J-Just... hurry...”

”If you take too long... I’ll be too embarrassed...”

Sweet breaths, pleading eyes.

I nodded—and took them both in my mouth.

Their voices echoed.

▼

—Awaken.

—Here is Alice-chan’s boobs,

—Rias-chan’s boobs,

—And the Breast Dragon!

Red light, crimson light, white light.

Three glows bathed the entire region.

▼

Something shifted inside me.

Power surged—not from my body, but my soul.

Warm. Gentle heat wrapped around me.

I felt them—both their powers flowing in.

So this is—

Ddraig, ready for round two?

”Hell yeah. Let’s go wild.”

Red, crimson, and white aura poured from the gauntlet’s jewels, enveloping me.

This power could protect everyone.

”ECLIPSE!!”

Wings, waist, gauntlets—cannons multiplied.

Heavenly Strike cloaked me.

”XENON!!”

Massive boosters formed on legs, shoulders, arms.

Heavenly Force layered atop Strike.

”AGIOS!!”

Wings reshaped into avian crimson.

Heavenly Wing crowned them all.

”FUSION EVOLUTION!!”

”EXA Promotion!!!!”

Heavenly Strike E · Heavenly Force X · Heavenly Wing A—fused!

Fusion Evolution—my new power!

Aura denser, mightier than any form before. The ground shook.

The copies’ massive barrage was nullified by the shockwave alone.

I turned just my head to the others.

”Stay here. Put up a barrier. From now on—I’ve got this alone!”

I spread my Heavenly Wings and soared.

Feather Bits deployed fully before the copies.

Let’s go, Ddraig! Bits are yours!

”On it! But don’t drag this out—this form’s unstable. Power this mismatched is volatile.”

Got it. A slight discord in the flow...

Then let’s end it fast!

I unfolded Heavenly Strike cannons—locked on!

Taste Heavenly Strike and Wing!

”BBBBBBBBBBBBBBBBBBBBBBBBBBBBBoost!!”

They moved fast.

If I had Lisha’s ”Crimson-Eyed Sniper” precision, I could pick them off clean.

But I don’t.

So—

”FIRE EVERYTHING!!”

Bits streaked across the sky. Cannons roared.

Crimson blasts from every angle swallowed the copies.

Direct hits—erased.

Like they’d been touched by annihilation magic.

Rias shouted from below.

”That’s my extinction magic! Ise—you have my power?!”

”Not just yours!” Alice cried.

Yep—Rias’s annihilation, Alice’s white lightning, both inside me.

Probably from sucking their boobs.

But I’d done that with Alice tons of times. Even accidentally with Rias recently—no change.

Why now?

T·O·S effect?

Whatever. Now I could this—

Right hand: annihilation. Left: white lightning.

I slammed fists together—a massive orb formed.

”EAT THIS—EXTINCTION THUNDER SPHERE!”

I punched it forward.

It obliterated one copy on impact. White lightning spidered out, charring the rest.

They shifted to Heavenly Force, charging with boosters blazing.

Shining Bunker.

So they can use that too.

Stealing a man’s moves without shame.

Time to crush them.

My boosters unfolded. Flames roared—annihilation concentrated.

I met them head-on.

”EXTINCT BUNKER!!”

Fist met fist. Brief stalemate—then annihilation ate through flame and armor.

Five left!

They switched to Heavenly Strike, charging Dragon Full Blasters.

A five-way fusion blast to finish me.

Perfect—I’d end them all at once.

I deployed every Bit. All cannons open.

Red dragon power, annihilation, white lightning—charging.

We finished at the same instant.

Now it’s a push.

”GOOOOOO!!”

”EXA Full Blast!!!!”

Our ultimate blast—my power, Alice’s, Rias’s combined.

They countered with five fused shots.

Deadlock.

But I can’t lose!

If I fall, they’ll head for the school.

The kids Spoon fought to protect—

”NO WAY I’M LOSING!!”

A beastly roar.

EXA’s blast surged—obliterated every last copy.

-------------------------------

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