Kai was twenty-one years old, and so far, life had branded him as useless. A college dropout, addicted to late-night anime marathons, and infamous among his friends for shamelessly hitting on anything in a skirt—Kai had long accepted his role as the pervert of the group.
That afternoon, he was slouching on a park bench, glaring at couples passing by, when his sandal pressed against something carved into the dirt beneath the old oak. A glowing mark shimmered to life.
Before he could shout, the ground opened.
"W-Whoa, wait! Not like this!"
Kai fell—head first—into a vortex of light. When he landed, the first thing he noticed was the draft. The second was the cold stone floor beneath his bare skin.
He was naked.
"Oi, oi, oi… this is not the kind of isekai I fantasized about! At least give me pants!"
Just then, a mechanical chime echoed in his head:
> Ding!
Welcome, Host, to the Evolution System.
Quest 1: Retrieve your clothes. Location: 300 meters east.
Kai's eyes lit up. A system! Just like in the webnovels he wasted nights reading. Except… why was his first mission to find clothes?!
Still, his grin stretched wide. "Naked in another world, huh? If this isn't destiny handing me a chance to finally score, then I don't know what is…"
And so began the journey of Kai—the shameless pervert who would one day charm, fight, and stumble his way into legend.
Kai grumbled as he shuffled eastward, covering himself with both hands like some prehistoric caveman. The stone corridor stretched on forever, faintly glowing with strange runes.
Just as he turned a corner, he froze.
Standing there, holding a basket of glowing mushrooms, was a girl.
Not just any girl—she had long snowy ears twitching atop her head, a fluffy tail peeking out behind her skirt, and wide amber eyes that locked with his.
A bunny girl.
Kai's jaw dropped. His hands forgot their job.
The bunny girl's eyes widened, her cheeks flushing pink in an instant. With a squeak that was half-shock, half-scandal, she spun on her heel and bolted down the corridor, ears bouncing.
"W-Wait! It's not what it looks like! Okay fine, maybe it is what it looks like, but—come back!"
Her soft footsteps faded into the tunnels, leaving Kai alone with only his shame and a very enthusiastic heartbeat.
Kai groaned, slapping his forehead. "Great. First day in a fantasy world, and I already flashed a bunny girl. This system better start giving me pants fast."
Panting from chasing after the bunny girl (and failing miserably), Kai finally stumbled into a small alcove where a glowing marker pulsed above a stone pedestal.
On it lay… pants.
"Finally!" he shouted, lunging forward like a starving man grabbing food. He yanked the pants up, struggling into them, then noticed something folded beneath. A shirt.
Just as he tugged it over his head, a chime rang in his skull.
> [System Notice]: Item "Rookie's Survival Clothes" equipped.
Classification: Normal. Durability: Pathetic. Attractiveness: Questionable.
Warning: You look like a potato.
Kai froze mid-pose, blinking. "What the hell do you mean potato?!"
Another chime.
> [System Hint]: You wished for clothes. You did not specify "fashionable," "sexy," or "legendary." Adjust expectations accordingly.
He glanced down. The pants were baggy, the shirt two sizes too big, and the whole thing smelled faintly of onions.
Kai groaned, throwing his hands up. "Perfect. First girl I meet, I'm naked. Second time she sees me, I'm going to look like a hobo cosplaying discount farmer."
Somewhere in the tunnels, a soft giggle echoed. Bunny ears peeked out from behind a rock, trembling with laughter. She had been watching.
Kai's face turned red. "Oh, you think this is funny?! Just you wait, Miss Rabbit—when I get real armor, I'll be the hottest damn hero you've ever seen!"
Another system ping answered him coldly:
> [System Note]: Lies detected.
Kai chased after the fleeing bunny girl, his shoes slapping against the dirt path. The trees thinned, opening into a narrow tunnel carved straight into the hillside. She darted inside without hesitation, her ears vanishing into the dark.
Kai hesitated, staring at the entrance. "What kind of rabbit runs into a dungeon? …Well, I guess the cute, fluffy kind."
The System chimed:
> [Notice]: Blood Resonance Detected.
[Warning]: Host shares genetic traits with target species.
"What?" Kai frowned, jogging deeper into the tunnel. His eyes adjusted quickly, the dim light catching on the curve of his own reflection in a puddle.
And that's when he saw them.
Long, twitching ears sprouting from his head.
Kai froze. "...You've got to be kidding me. No way. No way I'm a bunny too!?"
The System buzzed again, smugly:
> [Confirmed]: Evolution Path Unlocked — Bunny Class.
[Trait]: Enhanced Legs. Increased… stamina."
Kai groaned, burying his face in his hands. "Out of all things… why not a wolf? Or a dragon? Nooo, I get rabbit ears! That's not sexy, that's humiliating!"
A small laugh echoed from the shadows ahead. The bunny girl stood there, biting her lip, her eyes wide with disbelief.
"You…" She stepped closer, staring at his ears. "…you're one of us."
Kai scratched the back of his neck, trying to look cool while his ears twitched uncontrollably. "Well, yeah. Surprise. Guess that makes us… compatible?" He winked.
Her cheeks burned crimson. She stomped her foot. "Idiot! Don't say embarrassing things in the mating tunnels!"
Kai's grin froze. "…Wait. Mating what?"
The System chimed helpfully:
> [Notice]: Location Confirmed — Sacred Bunny Tunnels. Historical use: bonding, courtship, and reproductive rites. Affection Level bonus doubled.
Kai's jaw dropped. He spun toward her with the grin of a wolf in rabbit's clothing. "So… you brought me here on purpose?"
Her ears shot straight up. "N-No!!"
The tension in the tunnel thickened, the air hot with things neither dared say. Kai stepped closer, lowering his voice to a whisper.
"Looks like you can't run from me this time."
She trembled, caught between fury and something else.
And for the first time, she didn't run.