Qin Siqing's name evokes the longing for clear skies after prolonged rain, as if whispering: let there be sunshine soon, no more drizzle.

Siyuan's name is diametrically opposed to this - her character's 'water' radical makes it seem almost combative between them. One craves water in their name while the other repels it entirely.

Now surpassing 165cm in height with a slender, willowy frame akin to Guan Yingying's, Qin Siqing stood in stark contrast to Siyuan whose under-160cm stature gave her an doll-like cuteness.

Assigning them to Western toy archetypes would make Qin the Barbie - all sharp jawline and elegance; while Siyuan became a BJD with her round cherubic face perfectly mirroring their respective dolls.

After breakfast, Siyuan examined Qin's phone before pronouncing it dead. European devices were cursed this way - repairs often exceeding new device costs when water damaged circuit boards and fried components. Replacing just one or two parts would cost half of a new phone alone.

Qin had expected Wang Zhuo to handle it as boys typically fumbled with electronics better than girls, but the younger Siyuan did it instead, surprising her greatly.

"Siyan is an electrical genius," Wang Zhuo praised freely while explaining. "Anything involving electricity - appliances, computers? She's goddamn fluent in them."

"Not that overrated," Qin gaped skeptically at his exaggerations.

"Siyuan! Show her your powers!" Wang waved the girls into his room. He felt Siyuan desperately needed friends despite humble origins, and shared similarities with Qin might help forge a bond.

Inside, Siyuan immediately dazzled. Manipulating computers like breathing, she bridged telecom broadband to the education network within minutes before creating an admin account on medical school servers as effortlessly as stir-frying vegetables. The ease of breaching university networks left Qin speechless while finally comprehending there were always higher heavens beyond one's own.

"Now we can do anything," Siyuan grinned slyly, "until school IT notices and disconnects the network anyway. They'd just need to restore backups from hardware archives, and my work vanishes."

"But you'll crack it in five minutes next time?" Qin analyzed logically, surprising Siyuan with her sharp mind.

Qin's smile was subtle yet competitive - she'd long grown used to being envied as a prodigy until now when another girl challenged her supremacy.

After finishing his day's duties, Wang entered to find the two locked in battle at the bed's center, not playing chess but five-in-a-row. Four pale legs kicked idly through air while waists curved like willow branches beneath thin fabrics revealing clear contours.

"Pardon my intrusion," he chuckled. "Your laundry is done - I'll hang it out?"

"Ah! I totally forgot!" Qin blushed. "Thanks, Brother Zhuo."

As Wang exited she remembered her undergarments still in the machine and dashed after him. But rushing in caused her to slip dangerously toward the toilet bowl...

Wang lunged just in time, gripping her back through fabric to prevent disaster.

"Watch your footing," he advised while steadying her.

Qin paled with lingering fright but also relief - had she been wearing that other shirt, his saving hand might have torn buttons loose entirely...

Siyuan arrived breathlessly at the commotion. "What happened?"

"She almost kissed the toilet seat," Wang dryly summarized as Qin shooed him away with a laugh.

Alone in bathroom, Qin retrieved her silk undergarments, face burning at the memory of her half-raised skirt revealing everything. The mayor's daughter - pursued by countless boys for the future national leader title yet drawn to Wang Zhuo instead...

Her childhood education had made her mature early but now she hid feelings behind innocent nicknames while waiting for either fate or rationality to resolve this.

First loves always ended unfulfilled, and she knew it...

While Qin wrestled with emotions, Wang was interrogated by Siyan. "Did you grope her? That scream meant something!"

"Nonsense! She slipped into the toilet," he defended. "Without me she'd have lost two front teeth."

"What's your relationship then?" she pressed.

He shrugged helplessly. "Her father is Mayor Qin - what do you think?"

"Who cares about titles?" Siyan scoffed. "You're clearly not afraid of him!"

"Cut that out," he ruffled her hair.

Spinning in Wang's shirt, she teased playfully while his eyes lingered briefly on the tiny mounds beneath fabric.

Blushing furiously at the glance, Siyan flounced back into room as Wang sighed inwardly - what a tempting forbidden fruit! He could have everything yet risk reputation...

Considering Qi Fei's inevitable disappointment if he found out... "Still worse than being an animal," he muttered while Googling on phone.

After hanging laundry and smiling shyly at Wang, Qin returned to chess with Siyan. Their games became increasingly friendly until they forgot Wang was supposedly working on duties.

But he wasn't researching anything - just calculating what would make him not a pervert.

The apartment buzzed with warm light when Qin suddenly heard an anguished groan: "One week..."

Her eyes widened at the cryptic exclamation as Siyan giggled knowingly. Whispering in her ear, she revealed Wang's wife was away for seven days minimum...

Qin couldn't decide if to laugh or question - did Wang have multiple wives? But then realized this third girl probably had low IQ and Siyan simply loved gossip.

Little knowing that Siyan's mind worked entirely differently, viewing it as harmless experimentation while calculating mayor's daughter potential. A beautiful face with lips like ancient portrait beauties would be perfect!

"How many...?" Qin finally asked softly.

"At least three," Siyan continued teasing. "If you want him - better hurry before competition wins."

Qin quickly sensed the probing tone, her smooth social skills easily deciphering the undercurrents while Siyan's low EQ masked her true agenda completely.