The morning sun bled through the dusty window panes of Kaito's room, where three mismatched humans sat crammed around a wooden desk cluttered with wires, tubes, and a sketchpad full of angry scribbles.
Kaito hovered over the miniature dam prototype like a bomb defuser. His hands trembled slightly, not from fear, but caffeine. "Okay… if my calculations are right and they better be this should finally work. I calculated the whole night for this."
Reika sat cross-legged, silent, eyes locked on the circuitry. Yui? She was halfway lying on Kaito's bed, playing with a rubber band and occasionally flicking it at his back. "I hear the you've a 17 cm scale.." Yui teases..
Kaito looked up.. half surprised, half curious, half sigh.. while Reika's eyes wide opened to Yui, as she try to avoid..
"You said that yesterday," Yui sang, her voice stretched out like she was chewing gum made of sarcasm. "And the day before. My patience is wetter than this dam right now, and trust me, that's saying something."
Kaito glanced at her with a deadpan look. "D-Don't jinx it."
"Baby boy, it's already jinxed. Now hit the damn switch, let's see if your 'genius' makes me wet."
Kaito inhaled dramatically. His finger pressed the button.
A low mechanical hum kicked in. The small turbine on the dam model began spinning, slow at first, then faster, as the water started to flow through the channels.
For a second, just one beautiful second, it worked...
Water trickled, flowed, then surged through the tubes like an artificial river.
Kaito jumped up, throwing both hands in the air. "YESSS! Yes! We have FLOW!"
Reika blinked. "..what?"
Yui laughed so hard she rolled off the bed. "Bro really said like 'I completed it. Oh, we're cooked. It's just 0.0069 of 100."
Kaito didn't care. He twirled in place like a six-year-old. "Yes---!"
"You're more like… the Leaky Prince," Yui smirked. "Or the Moist Nerd. Take your pick."
But then
PSSHHHHHHHHHHHHH
A sudden loud pop followed by an eruption one of the side valves exploded. A jet of water shot straight out right onto Yui's face.
She froze mid-laugh as a fountain splashed directly into her mouth.
"Pfft uhhh OH MY GOD," she coughed. "Is this your water or your kink?!"
"Turn it off!" Reika shouted, scrambling away.
Kaito panicked, hit the switch, but it made it worse. The valve now sprayed sideways like a busted fire hydrant hitting Yui's chest.
Her white T-shirt darkened immediately, clinging to her figure. Her black bra underneath might as well have been a neon sign.
"…Seriously?" Yui looked down, deadpan. "Dude. You really had to shoot it there? You just have me a watershot!!!"
Kaito's hand flew to his mouth, trying not to snort. His face turned red. His eyes flicked everywhere except at her chest, which only made him look more guilty.
"I-I didn't mean to—"
"Oh sure," she cut in, smirking. "It just happened to hit my mouth, then my tits. Wanna spray the third eye while we're at it?"
Kaito choked. Reika, already halfway across the room, muttered, "This is getting weird."
"My shirt's see-through. Your bed's soaked. And he's trying not to pop a tent," Yui said casually, pointing at Kaito's lap.
"WH— I'M NOT!" he yelped, grabbing a pillow like it was a shield. "I didn't even look!"
"Oh, honey," Yui grinned, dripping wet. "You looked with your soul."
Reika sat down again, now dry, arms crossed. "Can we please waterproof it before this becomes a full hentai?"
Yui flopped onto the soaked bed like a queen claiming her throne. "Too late. Chapter three's already spicy."
Kaito looked at the busted dam, the soaked sheets, and Yui grinning at him like she was the devil in damp cotton.
He muttered under his breath, "Science was supposed to be safe…"
Yui stood in the middle of the mess, clothes clinging to her like cellophane. She wiped her face with both palms and exhaled like a pissed-off goddess.
"…I'm going to change," she muttered. "Before I break this model. Or your face."
She walked off without waiting for a response. Her wet footprints squeaked all the way to the hallway.
And then there were two.
Reika and Kaito sat in silence. The only sound was the soft whir of the fan and their own completely out-of-sync breathing. Both stared at the floor, then at each other, then quickly away.
"…Hi~!" Reika said suddenly, a little too cheerful.
Kaito blinked. "H-hi!"
She gave him a tight-lipped smile, then shifted slightly where she sat, brushing imaginary dust off her knees. Kaito scratched the back of his neck like it was itchy with guilt.
Neither of them knew what to say. So they sat in the silence, both painfully aware that Yui's shirt had just gone transparent in front of them. Like a live-action wet T-shirt contest had crashed a science project.
But on the other room?
Yui yanked open her dresser drawer like it owed her money. Still dripping, still fuming.
"This kid!!" she growled, throwing off her wet top with a vengeance. "What the hell was that?! Waterboarding me with his science experiment?! Who the hell makes a dam with a bukkake feature?!"
She dried off roughly with a towel, scowling at her mirror. Her cheeks still burned, part anger, part… something else she refused to name.
"Fucking idiot," she muttered again. "Fucking… adorable, awkward, idiot—AHHH screw it!"
She threw on an oversized black T-shirt, the kind that made her look like she was either hungover or about to lead a girl group.
Back to Kaito's room..
The door creaked open.
Kaito and Reika turned just in time to see Yui step in, dark shirt hanging low over her thighs, still barefoot. Her expression? No more sarcasm. She looked like a pissed-off team captain ready to reorganize chaos. More than believed
"Alright," she clapped once, sharp. "Before this turns into a hentai anthology, we're gonna work, got it?"
Kaito sat up straight. "Yes!!"
She pointed at him like a general barking orders. "You control the water flow system. Pipes, power, pressure. That's your thing."
"Got it!"
"Reika and I will handle the structure, layout, support angles. No more rogue geysers, no more accidental fanservice, no more spontaneous wet T-shirt contests!"
Kaito swallowed. "Yes ma'am."
Yui narrowed her eyes. "Good. And Kaito?"
"Yeah?"
She leaned in just enough to make him nervous. "Next time your little sprinkler gets excited, warn a girl."
Kaito turned red again. Reika choked on her own laughter.
Yui smirked. "Right. Let's build a dam. Not porn."