Author's words: all characters are 18 years or older, all timelines are changed correspondingly. don't take it wrong and cause trouble for me... thank you
Chapter 1: The Birthday Transmigration
The last thing the woman remembered was blowing out the single candle on her tiny store-bought cake in her cramped apartment, wishing—for the hundredth time—that her life could be anything other than this endless loop of shyness, loneliness, and quiet regret. Twenty-six years old, still blushing at compliments, still avoiding eye contact with cashiers, still dreaming of fictional worlds where people were brave.
Then the world blinked.
When her eyes opened again, the ceiling above her was wooden, not cracked plaster. Sunlight streamed through paper screens instead of cheap blinds. Her body felt… smaller. Lighter. And there was hair—long, dark brown hair—spilling across her pillow in twin buns that had somehow come half-undone in sleep.
She sat up too fast. The room spun.
(This isn't my room. This isn't my body. Oh god, oh god, oh god—)
Her hands—smaller, calloused from what felt like years of gripping handles—flew to her face. Soft cheeks, no glasses. She scrambled out of the futon and stumbled to the small mirror hanging on the wall.
Brown eyes stared back at her. Wide, startled, framed by those signature buns. A red qipao-style top hugged a figure that was athletic yet unmistakably feminine. Bandages wrapped her forearms. A scroll pouch sat neatly on the low table beside kunai and shuriken.
"Tenten…" she whispered, the name tasting foreign and perfectly right at the same time.
(I'm… in Naruto? I'm Tenten? But she's supposed to be—wait, how old am I?)
She patted her body down frantically, then froze when she realized she was wearing only a thin tank top and shorts underneath the half-open outer layer. Heat flooded her face.
(No, no, stop panicking. Think. Today is… her—my—eighteenth birthday. One month before graduation. In this version of the world, academy students don't graduate until they're adults. Okay. That's… good? Right?)
She took a shaky breath and tried to remember everything she knew about Tenten. Weapons expert. Member of Team Guy. Underappreciated. Quiet. Loyal. Not exactly a main character.
(At least I'm not Sakura. Or Hinata. I'd die of embarrassment five minutes in either of those bodies.)
A soft chime rang inside her skull—like the notification sound of an old phone, but impossibly intimate.
[Perverted Exhibitionist System – Awakening Complete]
[Happy 18th Birthday, Host Tenten! ♡]
[Initial Binding: 100% Success]
She froze. The words floated in her vision like a blue holographic screen only she could see.
(What. The actual. Fuck.)
[System Goal: Guide Host toward ultimate liberation through escalating acts of exhibitionism, seduction, infidelity facilitation, and shameless pleasure.]
[First Reward Pool Unlocked: Chakra Enhancement, Physical Beauty Upgrades, Exclusive Jutsu Scrolls, Aphrodisiac Kunai (limited), Harem Slot Expansion (coming soon~)]
[First Task Issued!]
Task 1: The Birthday FlashObjective: During today's private training session at the academy grounds (after sunset), intentionally expose your panties to the open air for at least five continuous seconds. Bonus if someone glimpses it—even from a distance. Reward: +10% permanent accuracy with thrown weapons Failure Penalty: None (this time). But you'll disappoint me, Host~ Time Limit: Before midnight tonight.
The screen blinked cheerfully.
Tenten—no, she—stared at it with her mouth open.
(This has to be a joke. A very cruel, very detailed isekai joke.)
She pinched her cheek. It hurt.
(Okay. Not a dream. Not a hallucination. I have a literal pervert system in my head now.)
She sank back onto the futon, hugging her knees.
(I can't do that. I can't just… flash people. I've never even worn a bikini in public. I once cried because a boy looked at my bra strap in high school.)
But even as the thought formed, a tiny, traitorous voice whispered at the back of her mind.
(…But the reward is accuracy. Tenten's whole thing is weapons. If I get better at throwing… I could actually be useful. Strong. Not just background.)
She groaned and buried her face in her hands.
(No. Bad brain. We are not rationalizing perversion on day one.)
Hours passed in a blur. She mechanically went through the birthday routine her new memories supplied: a small bento her father left with a note ("Proud of you, kiddo. Eighteen already. Train hard."), quiet morning stretches, packing her weapons pouch. Every few minutes the system pinged her with cute, teasing reminders.
[Tick-tock~ Sunset is approaching. Don't be shy, it's just a little peek.]
By late afternoon she was at the training grounds behind the academy, alone. Most students had gone home to celebrate or study. The sun was sinking, painting everything orange and gold.
She stood in front of a line of wooden posts, a kunai in each hand.
(I could just… ignore it. What's the system going to do? Nothing, right? It said no penalty this time.)
But the screen hovered insistently.
[Task Acceptance Recommended. First impressions matter, Host.]
She swallowed.
(Fine. I'll do it… but only because I want to test if this thing is real. And only for five seconds. And only when I'm absolutely sure no one is around.)
She glanced left. Right. Up at the trees. Nothing.
Heart hammering so loud she was sure it echoed, she gripped the hem of her qipao skirt.
(This is insane. This is so insane.)
One slow lift. Cool evening air kissed the backs of her thighs.
Higher.
Plain white cotton panties with a tiny red bow came into view.
She held it.
One… two… three…
A twig snapped somewhere behind the treeline.
Tenten yelped, dropped the skirt like it burned her, and spun around—only to see a flash of orange.
Naruto Uzumaki, all of eighteen and still wearing that godawful jumpsuit, poked his head out from behind a tree, ramen cup in hand.
"Oi, Tenten! Were you doing some super secret training just now? I thought I saw—uh…"
His eyes flicked downward for half a second before he slapped both hands over them dramatically.
"I didn't see anything! I swear! Believe it!"
Tenten's face went nuclear.
(He saw. He definitely saw. Oh my god I'm going to die.)
The system chimed happily.
[Task 1: Completed! Bonus Achieved – Witness Confirmed (Naruto Uzumaki)]
[Reward Granted: +10% permanent thrown weapon accuracy]
[Bonus Reward Unlocked: 'Blushing Kunoichi' Title – +5% charm when embarrassed]
[Level Up! You are now slightly more shameless. Congratulations~]
Tenten dropped to her knees, hands covering her burning face.
Naruto, still peeking through his fingers, edged closer.
"Uh… you okay? You look kinda… red. Like tomato red. Did I do something?"
She peeked up at him through her fingers.
(He's… kind of cute when he's flustered. Wait, no! Bad! Pervert system is already corrupting me!)
"I'm fine!" she squeaked, voice three octaves higher than normal. "Just—training! Intense training! You can go now!"
Naruto grinned, oblivious.
"Cool! See ya at graduation next month, Tenten! Don't work too hard, 'kay?"
He dashed off, leaving her alone with her pounding heart, the fading sunset, and a system that was already pinging her with the next task preview.
[Upcoming Task 2: Wardrobe Malfunction – Coming Soon…]
Tenten flopped backward onto the grass, staring at the darkening sky.
(One day. I've been here one day. And I already flashed Naruto Uzumaki.)
A tiny, hysterical giggle escaped her.
(…I'm so screwed.)