As night deepened, the temperature in the bedroom quietly rose.

Improved flexibility makes many movements that were previously impossible to attempt easy, allowing me to do them with ease...

Tonight will clearly be a long night of testing...

...........

.........

The morning sunlight streamed into the dining room through the sheer curtains, and Akemi was placing golden-brown fried eggs on the table.

Her movements were light and skillful, showing no sign of what had happened the night before. Only when she occasionally raised her hand to tuck a stray strand of hair behind her ear did the faint red marks on her neck reveal a hint of the previous night's eroticism.

"Good morning, Ai." Akemi smiled gently as she poured her younger sister a glass of warm milk as she came downstairs. "Did you sleep well?"

Ai walked into the restaurant with a gloomy face, her short brown hair sticking up messily, clearly not combed at all.

She was wearing loose pajamas, and her walking posture was slightly awkward.

"No way I'd sleep well!"

Ai glared at her sister through gritted teeth, her icy blue eyes burning with anger and embarrassment. "You...you've gone too far!"

It's true that egg tarts will permanently gain more "softness".

But after all, this effect requires continuous accumulation. Last night she only ate a few, but as if she had discovered a new and interesting toy, she was treated like Play-Doh and abused.

Akemi blinked innocently: "We were just helping Master Yuzuru test his flexibility."

She spread jam on the memory bread printed with the book's contents and gently placed it in front of Ai, saying, "Scientific experiments always come at a price."

"Scientific experiment?"

Ai was so angry she almost spilled her milk. "What kind of scientific experiment is that! Who does experiments like that...!"

Her voice grew softer and softer until it almost became a mumble.

Besides, what scientific experiment focuses on a single white mouse and tortures it relentlessly?

Thinking of this, she felt a pang of grievance.

Oh, right.

She seems to treat a certain large steamed egg the same way.

Thinking about it this way, she felt a little better.

Tomorrow I have to go to school and have two more vials of Conan's blood drawn.

Good morning, my scientist.

Yuzuru walked into the restaurant looking refreshed, patted the little girl's head, and smiled, "The experimental data from last night was very valuable."

Ai grabbed a fork and stabbed it into his hand: "Go to hell, you pervert!"

Yuzuru nimbly dodged, then grabbed her wrist and gently pulled the haughty little girl into his arms: "So energetic, looks like your flexibility has recovered well? Shall we test your morning data again?"

"Get out!" Ai struggled desperately in his arms. "I'm warning you, if you dare to use me as a guinea pig again, I'll drag Ran and the others down with you!"

"Is there really such a good thing?" Yu Shengnan's eyes lit up.

My eyes lit up!

Xiao Ai instinctively covered her eyes, and two clear tears slid down her pink palms.

The lights are too bright; they hurt my eyes.

"What kind of weird ability is this?"

"Hmph, just a minor skill."

Yuzuru smiled, the light in his eyes slowly fading.

He simply added a small angel code to his eyes, and he could instantly cosplay Cyclops whenever he wanted.

"You're happy with this little prank, aren't you?"

Ai lowered her hand in annoyance and slapped him across the face.

Yu Sheng Nan smiled and let her vent her anger, after all, he had already vented all his anger on the little girl last night.

Playful bickering between couples can actually be a fun way to enhance their relationship.

Akemi watched the two bickering and laid out the breakfast: "Alright, you two stop fooling around. Ai, have something to eat first. I made your favorite blueberry jam."

Ai angrily broke free from Yuzuru's embrace, plopped back into her chair, grabbed a piece of toast, and took a big bite, as if it were someone's flesh.

As she chewed, she glared at the two of them with murderous eyes, like a little squirrel guarding its food, cute yet with a hint of ferocity.

"Is your back still sore?" Yuzuru asked with a mischievous grin, handing over a cup of hot milk. "I definitely overdid it a bit last night."

"puff--"

Ai spat out a mouthful of milk, "You...you dare to mention that!"

She frantically wiped her mouth, so embarrassed and annoyed she wanted to disappear into the ground. "What 'testing flexibility limits'? It's just... it's just..."

She was so angry that she was incoherent and didn't know how to describe it.

"What is it?" Yuzuru asked knowingly.

Ai, unable to bear it any longer, grabbed a kitchen knife and threw it at him, shouting, "Beast!"

Akemi reacted quickly, catching the flying knife just in time. Her smile remained gentle, but her tone was serious as she admonished, "Ai, that's dangerous."

As she spoke, the maid applied a slight pressure to her hand.

The hard knife seemed to turn into a lump of clay in her hands, instantly molded into an iron ball.

Seeing this, the proud loli's icy blue eyes twitched involuntarily.

She almost forgot that her older sister now also possessed talismans.

Thinking about this made her want to cry even more.

Before her older sister had the talisman, she could still put up some resistance, but now that her older sister has the ox talisman, she feels that her future is bleak and she can't see any light.

"Hiss~"

Speak of light, and light will come.

The intense light made Ai squint, and she stuck out two fingers and poked someone.

Yuzuru reacted quickly, dodging Ai's angry thrust by sidestepping in time, and the dazzling laser light in his eyes also disappeared.

He obediently sat back in his seat, but the smug smile on his lips didn't diminish at all, like a child who had successfully pulled off a prank, feeling delighted to see Ai's sullen face.

No wonder everyone likes to tease children.

Seeing the cute little girl get angry but helpless is indeed very pleasant.

"I'm stuffed!"

Ai pushed away the half-eaten breakfast and got up to leave.

Mingmei quickly stopped her: "Eat some more, you used up so much energy last night..."

"Sister!" Ai interrupted her, her ears burning red with embarrassment and indignation. "Don't mention what happened last night!"

"Okay, okay, let's not talk about it." Mingmei patted her back like she was coaxing a child. "But you have to finish your milk at least, you're still growing."

Ai rolled her eyes: "I'm 18!"

Despite saying that, she never resisted her older sister's words. She sat back down, picked up her milk cup, and gulped it down, leaving a white "mustache" around her mouth.

This made her look even more adorable.

......................