GOLD SHIP’S TRAINING WENT WRONG
Each horse girl had a free day, some went home, some trained on the field, some went to the dining room. Today, Gold Ship and McQueen Mejiro were in the pool, thinking about their training plan, they were arguing.
“I don't know Gold, this is a bad idea, a really bad idea.”
“Oh come on, it's a no-brainer, what's to stop me?”
“Do you realize what you're going to do? Did the last few rivets in your head run away on the field?”
“I can do anything, I believe in it.”
They continued to argue about it. Gold Ship's idea was that McQueen should tie heavy chains around her arms and legs and throw her into the water until she held her breath for as long as possible, then McQueen would release her. McQueen didn't like the idea at all, given the risk involved in such training, but Gold Ship was unfazed. McQueen and Gold had known each other for a long time, best friends, shoulder to shoulder, and Gold herself had always had the charisma and stubbornness of a girl most horses couldn't get, but her arrogance usually got her in trouble. 
The water in the pool was blue and clear, barely perceptibly cold, just right for a workout. They both stood at the edge of the pool, wondering if they needed to do this workout.
“Oh please, I can do it, trust me”
“Well, Gold, I don't know, how can you hurt yourself?”
“I always know I can rely on you! “
“But only for a little while, I don't know how long you'll last.”
“It'll be a long time, you'll see!”
McQueen took hold of the iron chains, they were heavy, but the athletic girl had no problem with that, taking the chains she walked up behind her friend. Gold Ship stood in front of her waiting, her long white hair stretched down her back, her whole body was almost visible, muscles flaunted all over her body texture, an athletic girl after hundreds of runs, only her chest and bottom were covered by her favorite red swimsuit. McQueen carefully fastened chains around her legs and arms, locking them shut, so tightly that Gold could barely move them, but that was their point. The chains tightened around her, her chest could barely breathe, it was already bearing the weight of the metal, not to mention the rest of her body, but Gold Ship was not afraid of it, her heavy excited breathing showed her defiant desire to prove herself, she knew she could.
The last chain was hanging on her, she jumped awkwardly to the edge of the pool, McQueen just watched how clumsy and ridiculous it looked, but she was confused by the eagerness with which Gold Ship wanted to take this training. It was a deep pool, about five meters down, with white and blue tiles sparkling on its sides, the water shaking slightly in the wind, but nothing disturbed its calm.
Gathering her strength, she stood on the edge of the pool, and for several minutes she did an exercise to draw more air into her lungs, she took a deep breath... She exhaled nervously. Looking at the water's surface, she saw only her reflection in the water, betraying the strangeness of her situation, before taking a step and plunging in like a rock. She glanced at McQueen.
“I always know I can count on you!”
“If that's the case, good luck!”
The two girls smiled at each other and Gold Ship stepped gingerly over the edge, almost immediately disappearing completely in a flash of water, now a blurred silhouette that gleamed in the darkness of the water. The dive was quick, flawless.
A flash of water bubbles stretched to the very bottom, and after a few seconds it broke up to reveal the girl tied to a horse. The weight of the chains pulled her to the bottom quite quickly. Almost immediately she reached the depths, only slightly bouncing her feet off the bottom of the pool.  For a while she squinted, her eyes not used to water, trying to focus. She knelt down under the weight, trying to straighten her back. Her hair dangled helplessly around her with her every movement.
Only when her eyes adjusted to the pressure of the water was she able to open them fully, now calmly looking around at the blue tiles that covered the walls and floor of the pool. There was only water all around. Then she looked up to the top, where she could see the water-distorted mirage that had been her friend. She stood on the edge, gazing into the white and pink mirage that was now Gold Ship. 
She calmly contemplated the thin edge of water above her as if it were a roof over her, a very thin edge of water separating her from the surface and the air. For a few minutes, Gold bobbed calmly at the bottom of the pool, she was even bored, because usually she just lost all her strength in exhausting runs across the field with the other horses, but now she just sat in a not very comfortable position.
McQueen stood at the edge of the pool, peering into the depths of the water, and even so, through the water, she could see his cocky smile, which made her want to continue. It was puzzling to her how desperate her friend was to do her best, and the thought of her friend warmed her heart, because she wanted Gold to do her best.
But she was distracted, her phone went off, someone called and she had to step away. She looked around the pool a few times, but the thought of her friend leaving her unattended for a short time didn't scare her, Gold Ship could handle anything. She thought so and headed out of the gym.
Gold Ship continued to sit at the bottom of the pool. Six minutes had already passed, and she certainly knew how to handle the pressure of the water and hold her breath, but she was still out of her element. As if to remind her of this, her chest began to burn slightly, and a column of bubbles seeped out from between her swollen cheeks. She calmed herself down, but it didn't last long, her body reminded her of itself again with chest pain, and the air was getting scarcer by the second. 
She let another line of bubbles float to the surface, trying to talk to her friend on the shore, but in vain, nothing happened.
“Oh it's getting hard and painful. Okay, McQueen, I can be pulled out.”
There was silence around her, mixed with the gurgling of water and Gold Ship's whimpers, as she was getting harder and more painful by the second.
“Àhh? McQueen, you can pull me out now, it's getting harder. Is she gone or what?! No, she's just messing with me, trying to push me to the limit.”
Gold Ship tried to comfort herself with this thought, but with each passing second, it disappeared, replaced by panic, and her lungs began to burn more intensely. 
Soon, the need for air deprived her of her calm demeanor, and she began to desperately tear at the iron chain around her body, trying to pull it off, but nothing worked. The iron was a heavy burden on her, squeezing her body everywhere. She fought against them tiredly, but every movement became slower. She couldn't take it anymore, she had to move, she had to be distracted! Perseverance even in such a terrible situation, even so she realized her own strength, hoping to jump to the surface despite the weight of the chains.
"Mnn... Ghblahblhblhblhblhblhbl..."
But could she really get back up? She doubted it, she was already so deep, so airless, and so tired... But there was nothing else to do. Do or die. With great effort, she tried to rise from the bottom of the pool.
To her increasingly desperate mind, any progress was good progress, and despite the difficulties, she began to climb... but not before the weight was pulling her back to the bottom. The helplessness she felt in this situation made her heart race and her chest tighten. 
"Heblhegloop..." - she grunted, releasing a large cloud of bubbles. Unknown to her, some tension had built up in her lungs, and she instinctively blew bubbles to release it. When she finally reached the breaking point, she was no longer distracted by the feeling of the water rushing past her, and only the realization that she was drowning and cold remained in her mind. No one would save her. No one would see her. And now her lungs really started to hurt in a terrible way.
"Mmhmmblgblblbl--!"
Everything was fine for a minute until the pressure inside her lungs started pushing more and more air out. Now it seems she can't take it anymore. Gold Ship's lungs finally gave up and took a deep breath of water! A sudden, intense burning sensation in his throat and chest engulfed him, and he was stunned for a moment, silent and puffing out his cheeks, holding the water he had inhaled. He slipped on the surface of the pool's bottom and fell onto his back, shuddering and letting bursts of air escape his lips in fright. Again and again, he squeezed the water from his lungs to suck it back in, despite the fact that his throat was constricting.
"H-Hahhhh! Ghhhhbglp, hglp, mmmph, m-mmhglp~?"
Along with the explosions of bubbles from his mouth that he left upstairs, she shuddered in pain. With each gurgling gulp, her bubbles became smaller and smaller, and her fear of drowning grew. A loud moan came from her lips, marking the approaching end of her struggle with her body. 
She was drowning, and it was painful. Her eyes opened in pain, and the blue tint on her cheeks began to spread across her face. She tries to push the water out of her lungs, her stomach convulses furiously, she chokes and sputters water, her legs give out, and her vision begins to blur.
"I need air...I need...glb......mmmppgggGLBLBLBLBLBLB!" 
She screamed and shuddered from side to side. At the same time, the last of her air was escaping her lips, in long streams from her empty lungs, into the water, trying to scream, but the water absorbed every sound. When she slid onto her back and with a painful gulp, her chest rose for the last time, taking a massive breath of water, her lungs began to fill to the brim. It became heavy, her body went limp, and she breathed in her empty chest for air, but there was only water instead.
The pillars and clouds of bubbles grew smaller and smaller with each moan, slowly turning into faint whimpers and gulps.  
Her chest contracted only a few times before the rest of her body relaxed, and with no sense of danger or anxiety in her tired mind, she inhaled slowly, slowly. She floundered, looking in all directions with pleading eyes, before another convulsion shook her body.
Her body had lost, and now there were no bubbles coming out of her mouth, on the contrary, each sip was accompanied by a dull moan and a gurgling sound in her throat. She gulped down the water relentlessly, the fear on her face replaced by relief, each gulp of water reducing the pain, taking her away from the horror of where she was. 
Eventually, her limbs froze and her struggles ceased, the only movement being the tiniest heaving of her chest and twitching of her stomach. Her eyelids fluttered open for the last time. As her limbs twitched and her body shuddered, her chest stopped rising, her lungs filled to the brim, her mouth simply opened and closed before she collapsed with a last painful gurgle, shaking her entire body.
......gakkhkhkhkh.......hel...helppp.....blblbl...."
She lay motionless at the bottom of the pool, her breasts gently swaying on the water, her eyes rolled back in the back of her head, the water not lulling her into a deep, quiet sleep. Her body became alien to her and dangled submissively under the water, her empty open pupils seeing only the depth of the water and the blue of the pool. 
...
And with that, everything plunged into darkness.
...
*SPLASH!
...
...?
"...Ghk...gh....hgaaa!!"
"...Ghk!!g-ghhaaaAHHHHHAAAAA"
She flailed on the floor, coughing violently and grabbing every gulp of water mixed with air. Her lungs struggled to spit out the remaining water, replacing it with air. Gold Ship's body, having received help from the outside, immediately reacted and immediately squeezed her lungs freeing them from the water, her eyes, which were closed, immediately opened and her pupils dilated. She just turned awkwardly on the floor from side to side near the pool. Her body was awakened by the unexpected air instead of water, forcing herself to inhale it greedily, coughing constantly. For a few seconds she just lay there, not thinking about anything.
...
McQueen stood beside her holding her friend in her arms, she tried to shake Gold Ship causing her body to wiggle to spit out the rest of the water. When she turned around, she was frightened to see that Gold was still in the water and not giving any signals. It was only when she dove after her that she saw the horror of the situation, she was terrified to see her friend's blue face, with only her breasts dangling underwater. She almost immediately pulled her to the shore, trying to give her first aid and perform CPR.
...
“ Ah... almost... drowned...”
“ I'm sorry, I was distracted. I'm sorry, I'm sorry, I'm sorry!!!”
McQueen was shaking her like a doll, and Gold Ship continued to cough up water, taking breaths where he could, and then leaned back and looked at McQueen with a smile.
"N-n-no... I d-don't think the workout will be as... hard as this... do you?" 
McQueen couldn't help but laugh, the girl was still so sassy and confident, even after nearly drowning. 
"No, the Golden Ship, I doubt it. I think we can call this training a 'worst case scenario', right?"
Gold Ship nodded, and the color slowly began to return to her face as she took a deep breath. Gold Ship's face was still blue, slowly returning to pink.
“Yeah, probably, but... maybe it won't happen again for a while, right? I'd try again, but naked... ha-ha-ha-ha-ha-ha."
McQueen just smiled. "Hey, stop joking! You're making me sorry I was so worried about you!"
They laughed together as they waited by the pool for Goldilocks to recover before turning and heading away from the pool. They'd had enough training today, both laughing about the adventure, but promising to be more careful next time.