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High School DxD: Return of the Crimson Dragon Emperor

Chapter 1 - I’m Back!! · Oct 23, 2026

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Chapter List (557)

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1 Chapter 1 - I’m Back!! 2026-10-23
2 Chapter 2: A New Sister 2026-10-23
3 Chapter 3: Everyday Life with My Sister 2026-10-23
4 Chapter 4: Enrolling at Kuoh Academy!! 2026-10-23
5 Chapter 5: My Life’s in Danger!! 2026-10-23
6 Chapter 6: Encounter with Devils!! 2026-10-23
7 Chapter 7: I Make My Decision!! 2026-10-23
8 Chapter 8: Devil’s Work!! 2026-10-23
9 Chapter 9: The Blonde Sister and the Stray Devil!! 2026-10-23
10 Chapter 10: The Worst Reunion, and Then... 2026-10-23
11 Chapter 11: Let’s Be Friends!! 2026-10-23
12 Chapter 12: We’re Breaking In!! 2026-10-23
13 Chapter 13: The Family Grows! 2026-10-23
14 Chapter 14: Side Story: Familiars and Introductions 2026-10-23
15 Chapter 15 - 14: Daily Life and a Troubled President!! 2026-10-23
16 Chapter 16 - 15: The Fiancé Pays a Visit!! 2026-10-23
17 Chapter 17 - 16: Training Begins!! 2026-10-23
18 Chapter 18 - 17: Leveling Up and the Captain’s Resolve 2026-10-23
19 Chapter 19 - 18: The Rating Game Ignites 2026-10-23
20 Chapter 20 - 19: The Final Blow 2026-10-23
21 Chapter 21 - 20: Game Over… and Beyond 2026-10-23
22 Chapter 22 - 21: Trouble’s Brewing!! 2026-10-23
23 Chapter 23 - 22: A Past Unveiled 2026-10-23
24 Chapter 24 - 23: Childhood Friends and a Crisis 2026-10-23
25 Chapter 25 - 24: United Front 2026-10-23
26 Chapter 26 - 25: Reunion with the Crazy Priest 2026-10-23
27 Chapter 27 - 26: Remembering What Matters 2026-10-23
28 Chapter 28 - 27: Clash with the Fallen Angel Elite 2026-10-23
29 Chapter 29 - 28: Showdown at Kuoh Academy 2026-10-23
30 Chapter 30 - 29: The Exposed Truth 2026-10-23
31 Chapter 31 - 30: Red Dragon Emperor Reborn 2026-10-23
32 Chapter 32: Side Story: Tanabata Memories 2026-10-23
33 Chapter 33 - 31: A Long-Awaited Reunion!! 2026-10-23
34 Chapter 34 - 32: The Sleepover Demon King!! 2026-10-23
35 Chapter 35 - 33: Pool Day!! Swimsuits!! 2026-10-23
36 Chapter 36 - 34: Parent-Teacher Day!! 2026-10-23
37 Chapter 37 - 35: The Newbie’s a Trap?! 2026-10-23
38 Chapter 38 - 36: One Step Forward 2026-10-23
39 Chapter 39 - 37: Fallen Angels and Demons 2026-10-23
40 Chapter 40 - 38: Tensions Ignite at the Summit 2026-10-23
41 Chapter 41 - 39: A Junior’s Resolve 2026-10-23
42 Chapter 42 - 40: Clash of the Two Heavenly Dragons 2026-10-23
43 Chapter 43 - 41: A Blaze of Defiant Resolve 2026-10-23
44 Chapter 44 - 42: Summer Break Begins!! 2026-10-23
45 Chapter 45 - 43: To the Underworld, GO! 2026-10-23
46 Chapter 46 - 44: Young Devils Gather! 2026-10-23
47 Chapter 47 - 45: Hot Springs and Hard Training! 2026-10-23
48 Chapter 48 - 46: Issei’s Mountain Mayhem 2026-10-23
49 Chapter 49 - 47: Tears of the Cat 2026-10-23
50 Chapter 50 - 48: Gremory Team, Reassembled!! 2026-10-23

Chapter 1: Chapter 1 - I’m Back!!

My name’s Issei Hyoudou. Eighteen, living for passion and ecchi.

I’m sprinting through a dark forest, full speed. Why? I’m being chased.

”Issei-sama! Return to the castle!”

Thirty maids, real ones, not cosplayers, chase me. Normally, I’d be all over their curves. Even now, I’m tempted.

But—

Whoosh!

An arrow zips past my face.

”Whoa! Trying to kill me? That’s a real arrow! Blunt the tip, at least!”

”They can’t catch you, partner,” Ddraig, the Welsh Dragon sealed in my Boosted Gear, says. ”They think a shot might stop you.”

I’ll explain the Sacred Gear later. First, why am I dodging arrows from armed maids? It started three years ago.

Three years back, I was in my world, a regular third-year middle schooler.

One night, post-homework, I was reading an adult magazine on my bed. Then, I got sucked in—literally.

Next thing, I’m in a women’s bathhouse. Crashed heads with a girl, both knocked out.

She was Audilia’s princess. I’d landed in her castle’s bath. Explaining myself? A nightmare. They nearly executed me.

I convinced them I wasn’t a threat. Asking about my situation only confused me more.

This was another world. The girl, a princess. Heroes, demon lords, and a human-demon war raged here.

Pure fantasy. I panicked, but with a princess, heroes, and magic before me, I had to believe.

No way home. The princess and heroes let me stay as a guest. I missed home, but the king, soldiers, and a hero were kind. I trained, shopped, and laughed with the hero. I considered staying forever.

Then war escalated. Demons attacked the kingdom. My friend, the hero, saved me from an attack but paid the price. My Boosted Gear awakened then.

”You caused his death! Leave!” the princess said.

She was right. But it wasn’t her heart speaking. A way home was found; she wanted me safe.

Fleeing was easy, but abandoning them? No way. My friend’s last promise drove me.

I left to train alone. A master taught me Renkan Keikikou, energy control. Ddraig trained me as the Red Dragon Emperor. I trained brutally, near death daily, to protect them.

Two years later, stronger, I returned, reclaimed the kingdom. I fought across the land. Yesterday, I beat the Demon Lord one-on-one.

He entrusted his daughter to me. ”She’s innocent,” he said, vanishing to end the war. He wanted her free from his title, safe, happy.

I decided to take her to my world.

Now, I’m running, a sack over my shoulder. Inside, the Demon Lord’s daughter.

It’s shaking. Hope she’s okay. I’m careful, but hang on!

Another arrow. I dodge, face the maids. Two drop from above, swords raised.

”Hero-sama, prepare yourself!”

”No chance!”

I slip past, touching them. I’m called a hero now, after the front lines.

”Sorry, I can’t stop! Dress Break!”

Snap.

Their clothes shred underwear too. Curves everywhere.

Thank you! What a view!

Dress Break, my only magic, a man’s dream. I’m terrible at magic otherwise.

”Kyaaa!”

They cover up, mortified. I memorize the sight, keep running. More maids pursue.

Wait. Stop them instead? Idea: paradise awaits!

”Partner, too far...” Ddraig groans.

Quiet! I may never see this again!

I charge the maids.

After memorizing their forms, I reach a clearing. A stone gate glows with rainbow light—the Gate to Another World. It’ll take me home, per records.

Alice, the princess, waits. Long golden hair, travel gear.

”You stripped them all, huh?” she smirks.

”How’d you know!?”

”Nosebleed.”

Blood on my nose and clothes. Will this wash out?

”Why’re you here, Alice?”

”To stop you?”

”Flattered, but I’m going. This world’s better without me. Hero, Demon Lord slayer—cool now, trouble later.”

My influence could spark human wars. I won’t let that happen.

Alice reads me. Not the Demon Lord’s daughter part, I hope.

”You’re leaving...” she murmurs.

”Wanna stay with you longer, Alice.”

”W-what!? Stop that!”

She blushes, turns away. I smile.

”I’m going.”

”We’ll meet again?”

”Call me, I’ll run back!”

”How?”

”Uh... good question.”

Is there a way? The records said...

Alice laughs. ”Still an idiot, even stronger.”

”Shut it! Willpower’ll do it!”

”You probably will.”

We laugh, first real one with her in ages.

”Gotta go.”

”Okay.”

”Take care, kingdom stuff and all.”

I offer my fist.

”You too, Issei.”

She bumps it.

”See ya.”

”See you.”

She heads to the kingdom, I to the gate. Rainbow light engulfs me.

”Ugh... where am I?”

My adult magazine’s here, from before I left. Room’s unchanged.

Same date on the clock.

A dream?

No. The sack’s beside me.

Three years there, no time here. Still fifteen, a third-year.

No exam prep. It’s July I’ll manage.

I open the curtains. My hometown, Kuoh Town, unchanged.

”I’m home.”

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