My name is Hyoudou Issei.
I'm an 18-year-old guy who lives for ecchi and passion.
…So, out of nowhere, I'm currently running at full speed through a dark forest.
The reason? The people chasing me.
"Issei-sama! Please return to the castle!"
The ones chasing me are girls dressed as maids.
About thirty of them.
Their outfits aren't cosplay—they're genuine maids.
If this were any other day, I'd dive right into them and enjoy their ample breasts.
Honestly, I still want to do that right now!
But…
Whoosh!
An arrow whizzed past my face.
"Whoa!? Are you trying to kill me!? That's a real arrow! At least take the tip off, will you!?"
'Well, those girls can't catch up to us, partner. They probably think hitting you will stop you.'
That's right, they're all holding weapons—spears, swords, bows, and arrows.
By the way, the one talking to me is Ddraig, the Red Dragon Emperor sealed within my Sacred Gear, the Boosted Gear (Red Dragon Emperor's Gauntlet).
He's also my partner.
I'll explain more about Sacred Gears later, but first, I need to explain the situation I'm in right now.
Why am I being chased by armed maids? Well… the story goes back three years.
---
Three Years Ago
Three years ago, I was in a different world.
That world was my original world, where I was just an ordinary third-year middle school student.
One day, after finishing my homework, I was reading an ecchi book in my room as usual—when suddenly, I was sucked into something.
This isn't a metaphor or anything.
It happened so fast that I didn't even have time to process what was going on…
When I came to, I was in a completely unfamiliar place.
A bathhouse… and not just any bathhouse—the women's bath.
I bumped heads with a girl who was bathing, and we both passed out.
Well, explaining my situation afterward was a hassle.
The girl I bumped into turned out to be a princess of a certain country, and I was treated as a suspicious intruder. I was almost beheaded…
Yeah, it was scary!
It was rough!
But somehow, I managed to explain myself and get them to understand.
At the time, I asked a lot of questions about the situation I was in… but the more I heard, the more confused I got.
To summarize what I learned:
This world is different from the one I came from.
The girl in front of me was the princess of a country called Odilia, and I had appeared in the castle's bathhouse.
And in this world, there are heroes, demon kings, and a long-standing war between humans and demons.
What I just mentioned is only a small part of it… but I was suddenly thrown into a world that felt like a fantasy.
I panicked.
The story was so far from reality that I didn't know what to do… but I had no choice but to believe it.
After all, there was a real princess and hero right in front of me.
I even got to see real magic, so what else could I do but believe?
I tried to return to my original world, but at the time, I didn't know how, and given the situation, the hero and princess arranged for me to stay in the castle as a guest.
It was a little lonely not being able to see my family and friends, but the king, his family, and the soldiers were all kind to me, and I even became friends with the hero.
The hero and I would train with swords together, go shopping in town, and get excited over trivial conversations.
Honestly, there was a time when I thought it wouldn't be so bad to stay in this world forever.
But… that life didn't last long.
About a year after I arrived in this world, the war between humans and demons intensified.
The balance between the two races was broken, and the country I was staying in was invaded by demon forces…
I was attacked by demons I happened to encounter—but my friend, the hero, saved me.
However, because he protected me, he…
It was at this moment that my Boosted Gear awakened.
"If it weren't for you, he wouldn't have died! He disappeared from my life…!"
Those were the words the princess, who I was close to, said to me.
It was my fault the hero died.
That's the truth.
But I quickly realized that wasn't her true feelings.
At the time, I had already found a way to return to my original world, and if I went back, I wouldn't be in danger.
So she deliberately said those harsh words—to protect me.
Maybe I should have run away.
But I couldn't do that.
Abandoning everyone and running away alone wasn't an option for me.
More than anything, it was because of what my friend—the hero—entrusted to me at the end.
To keep the promise I made with him, I…
I left them and set out on a journey of training alone.
I found a master who taught me Rengan Keikikou, a combat technique that manipulates energy, and Ddraig taught me how to fight as the Red Dragon Emperor.
To return to everyone.
And to protect everyone.
To gain the power to protect everything, even if it meant spitting blood, I threw myself into rigorous training.
Every day, I was on the brink of life and death.
---
Two Years of Training
After two years of training under my master and Ddraig, I returned to everyone, stronger than before, and managed to reclaim the country from the demons.
That was just a few months ago.
After that, I joined battles across the land with a few companions to defeat the Demon King.
And yesterday—I won the one-on-one battle against the Demon King.
But defeating the Demon King didn't mean everything was resolved.
Actually, the Demon King entrusted his daughter to me.
In the final moments of the fierce battle, the dying Demon King told me, "My daughter is innocent," and entrusted her to me.
The Demon King disappeared into the flames, fulfilling his duty to end the long-standing war…
The Demon King didn't want his daughter to inherit his legacy.
If the Demon King's daughter were to survive, there would be those who thought, "The Demon King's daughter could become the spark for a new war, so let's eliminate her before that happens."
That's why the Demon King wanted to end the role of the "Demon King," the object of humanity's fear, himself.
Above all, he wished for his daughter's happiness…
After being entrusted with the Demon King's daughter, I decided to return to my original world with her.
---
And now, I'm running while carrying a large bag.
Inside the bag is the Demon King's daughter.
It's pretty bumpy, but is she okay in there?
I'm being careful not to hit her, but… please bear with it!
Whoa, another arrow's coming!
I dodge the arrow and prepare to face the maids chasing me.
Then, two maids drop down from above.
"Hero-sama, prepare yourself!"
"What!?"
I slip through the swords they swing down and touch them in the process.
By the way, after fighting on the front lines for so long, I'm considered the Hero representing humanity.
"Sorry, but I can't get caught now! Dress Break!!"
Then, I snap my fingers—
Rip rip rip!
Their clothes, including their underwear, fall apart.
Their ample breasts!
Thank you!
What a feast for the eyes!!
This is my ultimate move, Dress Break!
It's the ultimate technique packed with a man's dreams!
It's also the only magic-based technique I've mastered since coming to this world.
Apparently, my magical capacity and sense for magic are critically lacking, so this is all I could learn!
"Kyaaaah!!"
The two cover their private parts and crouch down.
Well, that's the expected reaction!
After saving their naked bodies in my mind, I start running again.
After all, there are still a bunch of armed maids coming from behind.
…Wait a minute.
Maybe it's better to stop them instead of running away.
A brilliant idea suddenly comes to mind.
I might even get to see paradise.
A bunch of naked girls.
What a wonderful sight!
'Partner, that's a bit much…'
Shut up!
I'm going to see it!
I might never get to see the breasts of this world again!
I start running toward the group of maids chasing me.