Hunter's Rise - Pupil Saga - Cover

Hunter's Rise - Pupil Saga

Copyright© 2025 by Mezu

Chapter 58: Undine’s Undertaking: Utterly Unexpected Upheaval

Fantasy Sex Story: Chapter 58: Undine’s Undertaking: Utterly Unexpected Upheaval - The story takes place in a world relatively similar to the real-life but with monsters. The main character is a monster hunter called Zara Cromwell. She and other monster hunters gain superpowers through experiments to be able to fight stronger monsters in the future. Warning: the series showcases various kinks and fetishes.

Caution: This Fantasy Sex Story contains strong sexual content, including Ma/Fa   Fa/Fa   Mult   Consensual   Mind Control   NonConsensual   Rape   Reluctant   Lesbian   BiSexual   Heterosexual   Hermaphrodite   Futanari   Paranormal   Furry   Magic   Vampires   Were animal   Zombies   Incest   Mother   Son   FemaleDom   Rough   Sadistic   Gang Bang   Group Sex   Orgy   Black Female   White Female   Anal Sex   Analingus   Cream Pie   Double Penetration   Exhibitionism   First   Facial   Fisting   Lactation   Oral Sex   Sex Toys   Tit-Fucking   Amputee   BBW   Big Breasts   Body Modification   Hairy   Public Sex   Size   ENF  

Aritimi woke up to the rancid stench of stale beer and sweat clinging to Steve’s bare chest pressed against her back. His cock, still half-hard and crusted with dried smegma, twitched against her thigh as he snored. She gagged, peeling herself away from his sticky embrace, her skin crawling where his grime had rubbed off on her. The bus reeked of mildew and unwashed bodies, the faint morning light through the dusty windows only highlighting the stains on the mattress beneath her.

She staggered to her feet, her thighs sticky with sweat and other fluids, her cunt aching from the hours of relentless, unsatisfying friction. Steve had fucked her like a man possessed, desperate, sloppy, never quite hitting the right spot but never stopping either. Her nipples were raw from his calloused fingers, her lips chafed from his unshaven face. She spat into a crumpled beer can, trying to get the taste of him out of her mouth.

Steve groaned awake behind her, his erection twitching against the mattress like a dying animal.

“Morning, babe,” he slurred, grabbing her wrist with sticky fingers. “Round two?” His cock, still coated in last night’s filth, bobbed pathetically.

“Oh, sorry ... I have to go,” She stammered, “I have to visit one of my friends.”

“Feel free to come back whenever you can,” Steve grinned, scratching his unwashed groin before flopping back onto the stained mattress. Aritimi barely suppressed a shudder as she left the vehicle.

The first thing she did was to summon her phone through a portal to whether she got any important messages.

The only one she cared about was the one from Kaia.

“Hey, Kaia, I saw you wanted to talk. We have to postpone today’s course?” Aritimi asked, “We still have a few hours before the course starts. I can reschedule things, but only four days have left before the exam, so we don’t have much time to play with.”

“No, I wanted to talk about something else,” Kaia replied, “I planned something special, but we can’t approach the location because of a certain group you know.”

“What are you talking about?”

“The PRA,” she revealed, “We need to infiltrate one of their events. Incognito, of course. Can you help with that?”

“Um ... yeah. I know a member,” Aritimi answered, “I’ll ask him about it.”

“Thank you, Timi!” Kaia beamed.

“But you owe me.”

“Bullshit! You still owe me a lot,” Kaia laughed, her voice crackling through the phone’s speaker. Aritimi could hear the smirk in her tone.

“How exactly do I owe you anything?”

“Well, I remember a ton of awkward stories about your early days, and I doubt you want your sisters to hear about them.”

Aritimi stayed silent.

“Now just help us as friends and colleagues and move on,” Kaia offered.

“Fine, I’ll go and ask that guy. I will call you later.” Then she threw her phone back into the portal. With a tired sigh, she turned around and walked back to the bus.

Steve was still in bed, rubbing his morning wood lazily, when Aritimi pushed the creaking bus door open again. His grin widened at the sight of her.

“Changed your mind, sweetheart?”

“I need a little favor,” She started.

“We can talk about any favors, but first, it’s time for round two,” he smiled, patting the mattress.

“Ugh ... fine,” Aritimi stammered, climbing back onto the stained mattress.


Zara and her friends were gathered in their usual spot in the park, waiting for Aritimi to arrive.

“Are you crazy, Zara?” Akemi groaned, pinching the bridge of her nose.

“Hey, I just gave her what she deserved,” Zara shrugged. “She had this coming.”

“But pissing off our mentor a few days before the exam? She is going to have her revenge. The exam will be super hard, or just super humiliating.” Akemi shuddered.

“You’re talking as if making things challenging or humiliating would be a thing she doesn’t do all the time to us,” Zara shrugged.

“Can’t we change the subject to something less stressful?” Dayanara offered.

“Yeah, let’s talk about today,” Undine said, nearly vibrating where she stood. “I’m so excited because today we’re definitely visiting the Aquatic Research Unit.”

“Are you sure?” Akemi asked.

“Yes,” Undine nodded confidently. “Aritimi said Yaraviel messaged her about our Halloween party plans. So we’re probably checking out her stuff that day. And the only units left in the course are hers and Kaia’s.”

“I wonder what she has prepared for us,” Zara mused, leaning back against the bench.

“I’m more interested in the Halloween party,” Bambi chimed in, already smiling. “It’s Artemis’s one hundredth birthday.”

“Right,” Gaylor added, “and since they’re supposed to announce her Council seat that day officially, it’s going to be huge.”

“We have time to think about parties later.” Undine waved them off. “Let’s focus on today. I hope we get to swim with some merfolk or other creatures.”

“Oh, I’d love to swim with Goldfish Mermaids and other cute ones,” Bambi beamed, clasping her hands.

“I want to swim with a Unicorn Mermaid,” Pixie declared, eyes sparkling with rainbow energy.

“I’m ... not sure they have those,” Zara said, sighing softly.

Suddenly, Akemi’s phone began to ring with the specific tone she set for Aritimi’s calls. The group went quiet as Akemi answered, flinching slightly at whatever was being said on the other end. After a tense pause, she said, “Yeah, we’ll be there,” before hanging up.

“What’s wrong?” Rexine asked.

“Kaia had to reschedule things because of a special occasion.” She started, “Also, a portal will open here soon for us.”

“But why didn’t she come?” Undine asked.

“Long story,” Akemi said as the portal opened near them, “First, we have to disguise ourselves.”

“Disguese? Why?” Zara blinked.

“We’re going to infiltrate a PRA event,” Akemi said while walking toward the portal.

The other end of the rift led them to the forest. The same spot where Zara, Koshka, Olympia, and Naomi were waiting for the PRA members in disguise to pick them up.

“But what happened? Somebody got kidnapped again?” Zara asked.

“No. Aritimi said that Kaia wants this.” She answered, “It’s about the course.”

“Thank goodness,” Undine sighed in relief, “I thought we would skip it or something.”

“Well, I guess we have to disguise ourselves to blend in,” Zara remarked.

“Yes. But how are we gonna blend in?” Akemi mused.

“Everyone,” Zara called, “Take off your clothes so we can disguise ourselves as monsters.”

“How exactly does taking off our clothes help that?” Gaylor asked.

“Monsters don’t wear clothes,” Olympia answered.

“Okay, but without our clothes, we’re just naked humans,” Gaylor replied.

“We will use our augmentations to help that,” Zara answered, “we just have to be creative with them.”

Half an hour later.

Zara stood waiting in her Bug Queen disguise, scanning the tree line for the bus while the others remained hidden behind the bushes. Also, she learned that she can hide her cock inside her body when using this form.

Soon, she spotted Steve’s rust-stained bus wobbling down the forest path.

“Hello, Steve,” Zara greeted as he parked. She immediately noticed Aritimi standing beside him. Hair messy, and skin still smudged with dirt from the night before. She clearly hadn’t had time for a shower.

“Nice to see you again, Zaza,” Steve waved.

“Um ... some of my friends want to join us, but I’m not sure if they’ll all fit inside.” Zara leaned to look into the bus, which was already half-full.

“It’ll be cozy, but we’ve got room for everyone,” Aritimi said. “Even our biggest friend.”

“Okay.” Zara nodded, then turned toward the bushes. “Come here, girls.”

An entire army of naked bodies emerged from the greenery and lined up in front of the bus door.

“Wow! You really did bring a lot of friends,” Steve whistled. “But of course, a hottie like you is popular.” He finished the sentence with a slap to Aritimi’s shapely ass.

“Yes. I am,” she hissed through clenched teeth.

“Would you ask them to introduce themselves?” Steve asked eagerly. “I want to know more about these lovely ladies.”

“Yeah, sure,” Zara said.

The first one to step forward was Akemi. Her black hair floated gently around her head, lifted by her telekinetic powers, giving her a pale, ethereal, ghost-like appearance.

“I’m Aki,” she said, using a Japanese accent. “An Onryō.”

Next was Bambi, her body dotted with spiraling golden patterns that moved like living tattoos across her skin.

“I’m Bam. Golden Goliath,” she said, strutting onto the bus like it was a runway. The men immediately greeted her with whistles.

“She’s pretty small for a goliath,” Steve muttered, scratching his head as he blatantly stared at Bambi’s swaying backside.

“She’s probably a hybrid,” Zara said quickly. “Maybe there’s some Elf in her bloodline or something. Anyway, let’s move on.”

Curtis stepped out next. She’d grown patches of fang-armor over her shoulders, hips, and along one thigh, just enough to give her a convincingly non-human silhouette.

“Oh, are you two related?” Steve asked, his eyes bouncing between her and Aritimi like a malfunctioning toy.

“Yes,” Aritimi said flatly. “She is my niece’s daughter. But she is not a Riftwalker.”

Dayanara followed, her red mane twisting and shaping into wriggling hair-snakes. She immediately drew whistles from several of the men.

“Daaamn, look at Medusa’s hotter sister,” one guy said.

Before she reached her seat, one bold idiot leaned out and slapped her huge ass. The resulting ripple traveled through her curves like a shockwave.

“Hey! Hands to yourselves!” Dayanara barked.

“Sorry, sorry ... couldn’t help it,” the man laughed.

Esmeralda went next, casually sprouting a handful of thick, glossy tentacles from her back. The reaction was immediate.

“Oh wow, tentacle girl! Don’t let her close to the Japanese girl!” one joker said before being elbowed.

Freya approached after her. With her tall, ripped physique, absurd ten-pack, and the occasional spark dancing along her skin, she didn’t even need to lie well.

“I’m a Voltage Valkyrie,” she said.

The bus erupted.

“Valkyrie? Dude, we hit the jackpot!”

“I want her to ride me into Valhalla,” someone muttered reverently.

Gaylor floated forward next, her weightless form drifting above the ground, Z-cup breasts bouncing independently of gravity like strange celestial bodies. She didn’t need to do anything else.

Then came Hristina. Her albinism already gave her a supernatural edge. She simply activated her freezing aura, letting frost gather lightly over her skin.

Next, Irish zipped out of the bushes, already irritated.

“I’m a Leprechaun,” she said curtly.

Not a single man questioned it. They all nodded immediately.

“Is she old enough? Most Leprechauns are a little bit taller than that.” Somebody said.

Irish clenched her fists, but sat down beside a guy.

Jacintha followed. Thanks to her heavy body mods, she didn’t even need an elaborate disguise. One quick demonstration of her clone-making ability was enough.

“I’m a Legion Lutin,” she declared.

Luckily for her, none of the PRA guys knew that a real Legion Lutin was supposed to be tiny.

“Damn, she’s like a whole army in one body,” someone whispered.

“Wait ... so banging her is technically an orgy?” another ne chimed in.

Keller was trickier. Her limp physical body was carried by two of Jacintha’s clones, while her astral form floated lazily above them like a smug balloon. Once the clones placed Keller’s body on a seat, they collapsed into dust.

“I’m an Astral Al,” she lied. “My body is just ... uh ... sleeping. I partied too hard yesterday.”

The Lexister trio had it easy. They simply merged into their three-headed form and stepped aboard. No one asked a single question.

“I don’t even wanna know what species that is,” one guy whispered.

Next came Minerva. She casually produced an entire second brain, holding it in her hand like a grotesque bouquet.

“What the hell?!” a PRA man yelped.

“That’s hot,” said another.

Niko sprouted delicate paper wings that rustled faintly with every movement. For a moment, several of the men froze.

“Wait ... she’s a girl?” One of them blinked.

“Hi, guys,” Olympia chirped as she entered. Crystal horns sprouted from her forehead, giving her the perfect Oni disguise.

“Good to see you again, Oly,” Steve grinned, then gave her perfect bubble butt a hearty slap.

“Thanks,” she said dryly, continuing inside.

Pixie didn’t need to disguise herself at all. Her glowing rainbow hair did all the work for her.

“Oh hell yeah, a rainbow girl!” one man cheered.

Quincy stepped up next, her arms and legs transformed into scaly reptilian limbs.

“Lizard babe!” A guy exclaimed.

Rexine followed. Being a half-Orc, she didn’t need to lie either. A chorus of impressed grunts followed her inside.

Skeletina went next, her skeletal frame and bony limbs drawing zero suspicion.

“Told you skeleton girls are real,” someone said triumphantly.

Tünde and Titanilla approached hand in hand.

“We are conjoined Nymphs,” they said in unison.

Steve immediately reached out and pinched their shared breast. “Damn, first time I get to touch two girls’ boobies with one hand.”

Both sisters sighed heavily.

Undine stepped forward.

“I’m ... Blue. I’m an Undine,” she said simply.

“What’s an Undine?” Steve asked.

“A type of water Nymph,” she explained.

“Oh! Nice.” He slapped her blue butt just as casually as the others.

Valeria climbed in next.

“Whoa! A cyborg!” Steve gasped. “Did you escape from a lab?”

“No. I’m a Robotic Revenant,” she lied, sliding past him.

Welcome approached, forced to bend over and crawl on all fours because of her enormous size.

“Jesus almighty! Girl, you could kill someone with just those massive boulders,” Steve said, giving one of her oversized breasts an appreciative pat.

“You can use the bed in the back,” Aritimi instructed. She’d specifically told Steve to leave it there, knowing Welcome would need something sturdier than a seat.

The moment Welcome crawled through the aisle, every man on the bus erupted into synchronized wolf whistles.

The vehicle groaned and creaked ominously under her weight.

“Damn, I hope this piece of junk doesn’t fall apart before we get to the party,” Steve said, thinking aloud.

“Don’t worry about that,” Xipil said as she stepped aboard with Xan. “We’ll put a protection spell on it so it stays in one piece today.”

“Oh, thanks, witch girl.” Steve’s eyes drifted over Xipil’s body; she was naked aside from her witch hat. Then he spotted Xan. “Sorry, kid, the little boy has to leave. This is an adult party.”

“I’m not a little boy,” Xan protested. “I’m just ... small.”

“He’s eighteen,” Xipil added. “His body is just underdeveloped.”

“Okay, good to know,” Steve nodded.

Xipil received whistles and catcalls as she entered, while Xan received only giggles and snickers, mostly directed at his tiny penis.

Last came the Byrne triplets. They, too, had an easy job, since they looked like a magically fused woman rather than three individuals.

But before Steve could close the door, Zara noticed a flash of light from the bushes.

“I think one more girl is left behind,” Aritimi said. She just summoned one of her friends there.

The real last one stepped out, a naked, middle-aged Hawaiian woman. Fit, with rich brown skin wrapped in tattooed patterns of waves and sharks spiraling down her limbs.

It was Kaia.

“Oh, hello,” Steve breathed. “What are you, cutie?”

“I’m a ... water Nymph,” Kaia said smoothly. “From Hawaii.”

“This party’s gonna be amazing,” Steve practically sang.

“Alright,” Aritimi announced, closing the door behind her. “We’re finally ready.”

And with a roar, the bus lurched forward toward the PRA party.


Meanwhile.

Iolana took a dive in the lake while her mother went to that event with Aritimi and her pupils.

She was interested in the beginning, but the moment she heard that they would need to party with PRA members, she noped out immediately. But Kaia only looked at their presence as a minor inconvenience. Iolana envied her dedication to the subject.

Anyway, she could at least listen to the story once her mother is back.

But as she was thinking about her mother while enjoying the water, she felt something.

A soft, but strong appendage wrapped around her ankle.

She took another look at it. It was seaweed, but somehow it was abnormally long, reaching out from a cluster of seaweed from the bottom of the lake.

Then the rest began twitching and elongating toward her direction.

At the same time, a boat stopped above her on the surface.


“Okay, soooo ... where are we going?” Zara whispered, glancing between Aritimi and Kaia. In truth, they didn’t need to whisper; anyone sober enough to eavesdrop was far too busy ogling the parade of naked flesh around them.

“It’s a special party with a ton of different Merfolk species,” Kaia revealed, her voice is that of an excited kid. “We’ll get to see hundreds, maybe even thousands, of types. It’s a once-in-a-lifetime opportunity. I cannot miss it.”

“That sounds amazing,” Undine beamed, bouncing lightly on her toes.

“Okay, but how did the PRA manage to pull that off?” Zara asked skeptically.

“There’s this famous Mermaid influencer who loves partying with them,” Kaia explained. “She organized the whole thing. I’ve been following her on Insta for months under a burner account. She hates the HSA.”

“I barely use social media. Only when absolutely necessary,” Zara shrugged.

“Oh, so you’ve never heard of Gill Jill?” Kaia asked, surprised.

“Who?”

Undine slapped both hands over her mouth. “There is NO way you seriously don’t know who she is!”

“As I said, I don’t follow this stuff,” Zara sighed. “So we’re going to some special Mermaid party?”

“Yes,” Kaia nodded eagerly. “And you should be excited! Researchers would literally give an arm and a leg for access like this.”

“Okay, I’ll give it a try.” Zara exhaled. “But where exactly are we going?”

“Honestly? I have no idea,” Aritimi admitted. She stood, walked over to Steve, and tapped his shoulder. “Where are we going, Steve?”

“We’re heading to a pickup point on the river,” he said, one hand lazily on the wheel. “From there, they’ll transport us to the actual party location. Don’t know how, but monster events always use weird transport methods to prevent unwanted guests.”

“Smart move,” Aritimi nodded. “But the girls and I aren’t ‘unwanted,’ right?”

“Nah, don’t worry. I already told them we’re bringing extra monster girls as guests.” He glanced back at the group, grinning. “They only get pissy if you’re humans. They can smell that.”

Zara grabbed Aritimi’s arm and tugged her aside. “Did you hear that? They can feel it.”

“Nah,” Aritimi waved it off. “Plenty of monsters can sense disguised humans, yeah, but augmented humans like us? Different story. The monster DNA in our augmentations is enough to fool them.”

Zara exhaled in relief. Undine did not; she was already staring dreamily out the bus window, imagining herself surrounded by Merfolk.

A few minutes later, the bus slowed, creaking toward the riverbank.

They didn’t have to wait long. An octopus mermaid crawled out of the water, her tentacles swaying gracefully behind her.

“PRA, right?” she asked.

“Yeah, and we’re ready to go,” Steve called back, leaning out of the bus window.

“Alright.” The mermaid nodded, then tapped the water lightly. “Pacifica, please bring us to the island.”

The surface of the river began to ripple. Moments later, a colossal hand of water rose up, fingers made of swirling currents.

“She summoned an Elemental?” Bambi gasped.

“Oh gods...” Aritimi whispered. “She didn’t summon Pacifica. She just asked, and Pacifica answered.”

The massive water-hand slid underneath the bus. Liquid fingers closed around it gently but securely, and then, with no warning, it shot forward across the river at high speed.

“Wow! We’re so fast!” Pixie squealed, her hair flaring rainbow with excitement.

“Yes,” Aritimi said, bracing herself, “the ocean herself is helping us move.”

“What do you mean by that?” Pixie asked, and even Bambi turned, confused.

“Although the media doesn’t talk about it much,” Aritimi explained, “all water on Earth is connected to a handful of unbelievably powerful elementals. One of them is Pacifica, the elemental of the Pacific Ocean.”

“Oh, so she guards the ocean?” Bambi asked.

“No, Bam,” Zara corrected. “She is the Pacific Ocean. Literally. All oceans are alive, not metaphorically.”

“Wait ... so the entire ocean is one big monster?” Bambi blinked.

“Well, almost every material on Earth has a supreme elemental tied to it,” Aritimi added. “But you don’t have to worry. Beings like Pacifica are peaceful. Gentle giants.”

 
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