I was Thrown into an Unfamiliar Manga

“If you keep pretending to sleep, I’ll just climb on top of you.”
With that threat, I could no longer keep up the act and slowly sat up.

“What are you doing here at this hour, sunbae?”
At my question, Fuma-sunbae traced her hand down her own body with a sultry smile.
“As you can see, I came here to sleep with you.”

“If we’re talking about that, didn’t we already settle this before? I said I’d find another way, so you don’t need to sacrifice your virginity for my sake.”
“We did. That was the conversation. But hasn’t the situation changed?”
With those words, Fuma-sunbae took another step closer.

As her robes shifted, dangerously revealing areas slipped into view.
“If you sleep with me, there’ll be no need for you to march into danger. Kim Yu-seong. So don’t be reckless. Just hold me. I don’t want to see a close junior die.”
Saying this, Fuma-sunbae knelt and pressed her body against mine.

She must’ve thought that with a hormonally overloaded high school boy, using her body would be enough to win me over.
And to be fair… she was nearly right.
With my overflowing Yang energy, just seeing her skin was already putting me on high alert.

But I couldn’t accept this kind of physical intimacy under these conditions.
I tightly closed my eyes and gently pushed her shoulder back.
“Fuma-sunbae.”

“Mm…”
I tried to speak, but my mind suddenly went blank.
Because I realized her shoulder was trembling.

She was trying to act composed, but she was scared too.
After a moment of silence, I finally opened my mouth.
“I’m not someone who can take responsibility for another person. I’m really sorry to say this, but… I can’t hold you, sunbae. You’re not a tool.”
Fuma-sunbae asked quietly, her voice tinged with sadness.

“Kim Yu-seong… am I that unattractive to you?”
“Huh? No, not at all… You’re… You’re way too beautiful for me, honestly.”
“Then why won’t you touch me? Unlike the other female ninja, I was raised as the future clan head, so I never learned how to seduce men. But I know… my body is the type men like.”

She said that as she ran her hands down her body.
Her figure, far more voluptuous than most girls her age, swayed in her small hands.
A true visual landmine for any guy.

Noticing I couldn’t tear my eyes off her, Fuma-sunbae gave a small, satisfied smile.
“See? Your mouth says no, but your body’s honest.”
Realizing where her gaze had gone, I quickly yanked the blanket up to cover my lower half.
“That’s sexual harassment.”

“Now you say that?”
She quipped playfully, then slowly stood up.
“Anyway, if you’re that against it, I won’t force you. I’ll leave now.”

She bent over to pick up her sash from the floor.
As she did, her heavy breasts spilled down, creating a dangerously scandalous sight.
If I were the protagonist of a rom-com, this would’ve been the nosebleed cue.

Straightening her yukata, she opened the sliding door but glanced back before leaving.
“Kim Yu-seong… if I had come to you without any conditions… would you have held me?”
“Well…”

I couldn’t answer immediately.
But to her, even that hesitation must’ve been an answer.
“You don’t need to say anything more. Sleep well.”

With a faint smile, Fuma-sunbae quietly slid the door shut and left the room.
***
The next morning.

After breakfast, I was summoned to the same room as yesterday.
Fuma-sunbae and her grandfather were already there, waiting for me.
I gave a small bow and knelt down across from them like before.

Fuma-sunbae’s grandfather spoke.
“Did you sleep well last night?”
The moment he said that, the image of Fuma-sunbae’s bare body flashed in my mind, but I did my best not to let it show.

“Yes. Thanks to you, I slept comfortably.”
“That’s good to hear. Makes the effort of hosting a guest from Tokyo worthwhile.”
He took a tobacco pipe—still unlit—and placed it between his lips as he spoke again.

“You said yesterday that you’d go after the yuki-onna. Are you sure you haven’t changed your mind? It’s not too late to withdraw. I don’t wish to send a young man to his death.”
At his offer, I shook my head.
“I’m not changing my answer. If I fail, I’ll leave the village without regret.”

At that, Fuma-sunbae’s grandfather burst into loud laughter.
“Excellent. Good! A man should have that much courage. I’ll have my granddaughter show you the way to the Western-style house where the yuki-onna lives. I look forward to hearing good news.”
He cast a glance at Fuma-sunbae beside him.

She picked up the wakizashi, Raikirimaru, which she had placed in front of her, and replied solemnly.
“Acting head of the Fūmashū, Fuma Yukika, receives your order.”
***

And with that, Fuma-sunbae and I left the village on foot.
She said she had never actually been to the Western-style house the yuki-onna lived in, so I asked how she was going to guide ◈ Nоvеlіgһт ◈ (Continue reading) us.
She shrugged and said this whole area was basically her playground—if she had a rough idea of the location, she could definitely find it.

So once again, I followed her up into the mountains without end.
Up and down treacherous, untamed paths, Fuma-sunbae walked like it was flat ground. It was a completely different feeling from the version of her I knew at school.
Also… now that it was daytime, I noticed her ninja outfit had mesh stockings woven into parts of it, making it… quite revealing.

Why the hell was the thigh part completely exposed?
With that thought burning in the back of my mind, I quietly followed behind her—until suddenly:
Crunch!

Startled by the sound at my feet, I looked down.
“…What the…”
Despite it being the middle of summer, the grass beneath my feet was frozen solid.

Fuma-sunbae seemed to sense something too. She drew Raikirimaru from her back and said,
“Kim Yu-seong. Scan the surroundings.”
Following her instructions, I looked ahead.

“…What the—?”
It was definitely summer, but beyond a certain boundary, everything was frozen over.
Wearing only a short-sleeved tee, I could feel the cold creeping up my arms.

“This must be the yuki-onna’s territory. I had a vague idea, but this level of spiritual energy is terrifying.”
Clicking her tongue, Fuma-sunbae moved her hands rapidly and activated some kind of jutsu.
“What did you do?”

“It’s a Fūma barrier technique. It stops external spiritual energy from invading your body.”
Hearing that, I looked at her with envy—then suddenly remembered the Yang energy inside me.
“……”

I clenched my jaw and focused, awakening the dormant Yang energy in my body.
It was like lighting a furnace inside my chest—warmth surged through me and pushed the chill away.
“Whew… That’s better.”

Watching me, Fuma-sunbae nodded.
“Then let’s keep moving.”
I gave a silent nod and followed her small back again.

***
The deeper we went into the mountain, the more the scenery turned to winter.
Yesterday, when Fuma-sunbae explained about great-class yokai, it hadn’t felt real. But seeing it now… yeah. This was the real deal.

She was literally changing the season with her presence alone.
Even if I knew nothing about the power hierarchy of the underworld, I’d read enough Jump to know that enemies with powers like this were no joke.
Crunch. Crunch.

Now we weren’t stepping on frozen grass—it was dried-up, frostbitten vegetation.
After some time, we finally spotted a two-story Western-style house deep in the mountain.
“This the place?”

“Most likely. I can feel an enormous presence inside.”
With her confirmation, we began to slowly approach the yuki-onna’s lair.
The surroundings looked like something out of a movie set.

Frosted-over trees, icicles hanging from branches, and even a frozen waterfall jutting upward unnaturally.
The word that popped into my head… Let it go, let it go.
Please don’t tell me the yuki-onna looks like her.

Despite her grandfather’s warnings, getting close to the house was surprisingly easy.
There were no guards, no barriers. Either she was that confident, or she simply didn’t care.
“…Completely frozen over.”

“…Yeah.”
We stood in front of an iron gate that wouldn’t budge.
I was just starting to wonder if we’d have to sneak over the wall like thieves when Fuma-sunbae suggested something.

“Why not try melting it with your power?”
“Huh? My power?”
“With your Yang energy, it should be possible.”

Half-doubting, I placed my hand on the frozen gate.
Then, focusing the Yang energy flowing through me into my palm—
Hssssss!

A kettle-like hissing sound rang out as the thick ice began to melt away.
Clunk!
The metal was rusted, but still functional.

Carefully pushing open the gate, we stepped into the courtyard and looked up at the looming Western-style house before us.
It looked just like the home of a witch from a fairy tale.