New World Gaiden

3190 BC

: The planet's environment underwent a sudden and abrupt change, with temperatures fluctuating wildly and non-periodicly. Global flash floods and forest fires were frequent, and vast
tracts of land were submerged and frozen.

Crops and livestock died in large numbers, human food sources dwindled drastically, the habitable environment shrank, and a large number
of humans perished.

Only mid-to-high altitude areas or certain special regions remained habitable.

The previous political civilization collapsed, and survivors formed city-states centered around settlements, utilizing remaining
equipment and technology for survival.

4450 BC

: After nearly 1300 years, the planet's environment stabilized, and climate change became more moderate.

Humanity was able to re-evolv, setting 3190 as the origin of a new generation—the New Year—and using this
year for dating.

At this time, the human gene sequence changed. A genome with strong immunity appeared on the male Y chromosome,
while female genes evolved to exhibit a higher frequency of estrus cycles due to increased reproductive needs.

The male birth rate declined rapidly, and the overall male-to-female ratio in society became extremely unbalanced, averaging
1:12. Some city-states experienced male-to-female ratios approaching 1:30.

Due to differences in their immune systems, men and women have different life expectancies: men have a life expectancy of 64 years, and
women 48 years.

Meanwhile, since no abnormalities have been found in offspring born to close relatives, and these offspring have a certain advantage in the birth rate of male
offspring , some city-states no longer prohibit direct reproduction between close relatives.

In the year 2140,

the city-state system stabilized, and the socio-economic situation began to recover. Manufacturing and high-tech agriculture became the main economic
drivers , and resource extraction and scavenging became the main competitive advantages of city-states, leading to an increased demand for labor.

The overall geographical division of the planet was re-established according to the city-state system, forming city-states of various sizes that were both
independent and cooperative.

There were 13 newly emerging large city-state systems and nearly 200 medium and small city-states. Some city-states
cooperated to form 35 city-state aggregates.

Internal circulation within city-state aggregates was based on credit points, while external settlement was based on equivalent transactions of resource value.

Men, due to their adaptability to the environment and their contribution to labor, had an increased demand for any castle; while
women, due to their frequent estrus cycles affecting their working ability, had a significantly decreased social value. In
human , men play a major role in the main economic sectors such as high-tech agriculture, machinery manufacturing, and resource extraction,
while women work in labor-intensive sectors such as textiles and food processing.

Whether in terms of social value or racial reproduction, men hold an absolute dominant position.

Prologue: Welcome to the Adult World .

"Brother, slow down! Wait for me! I forgot my chain!" A
girl in a red short dress rushed upstairs, grabbed the chain from the bedside table, fastened it behind her neck, and ran downstairs
. Seeing her brother still waiting at the door, she pounced on him, leaving a large red mark on his
face .

"You clumsy girl! I'm registering to be an adult today! Hurry up! If you're late, your older sister will beat you!"
He supported the girl's firm buttocks, letting her cling to him, and quickly walked to the car parked at the door.
After putting the girl in the back seat, he got into the driver's seat and drove towards the city hall.

---

My name is Yang Junhao. I was born in Qinglong City in the year 2260 of the New Era. My father is a member of the City Council and
a medical equipment manufacturer. My mother is my father's second wife, highly educated, and currently
the quality control supervisor of my father's company. As my father's only male descendant born in wedlock, I have received a very rigorous education since childhood
and will be entering a research institute to pursue a doctorate.

Today is my 16th birthday, which is also my coming-of-age ceremony. According to the laws of the City, starting today, I must
live independently with my spouse, my protector, and my female slave. So now, I am going to the City Hall with my designed
independent identity marker sample and my sister, Yang Junyi, for my coming-of-age ceremony and information update.

---

As I sped towards the City Hall, I saw a tall and beautiful figure standing in front of it. Her
sharp gray suit and short purple hair complemented each other perfectly. Seeing us get out of the car and walk briskly towards us, she smiled sweetly, "Xiao
Yi, did you forget your chain again and go back to get it?"

She walked over to me, took my hand, and looked at me as if to say something. "Alright, Xiao Hao, don't
cover for your little sister. Hurry up and go in! Mom, Dad, and the aunties are all here." She then pulled me into
the city hall .

This capable and beautiful woman was my older sister, Yang Junxiao.

Entering the second auditorium, my parents, family, and friends were chatting. Seeing Junxiao,
Xiao Yi, and me come in, my father and mother gave me a hug. "Xiao Hao, are you reluctant to become an adult? Do you really want to
stay home that much?" My father patted my shoulder, then called over the city hall official to conduct my coming-of-
age ceremony.

The ceremony was simple yet solemn. After taking an oath, clarifying my responsibilities and obligations, and reaching a confirmation with my father, I
officially became an independent male member of society. Afterwards, the official took my independent identification
badge design and filed it.

Meanwhile, I took out the two tags I had already made, ready to implant them into Junxiao and Junyi.
When I took out the rapid injection gun, everyone looked at me with a bit of doubt.

"Brother, are you going to give us injections with this?" Junyi looked at me, confused. Seeing everyone's
confusion, I briefly explained my tag to them. In short, it's a subcutaneous injection chip that
forms an imprint on the skin, which can detect the recipient's vital signs and location. Most importantly, it's not easily damaged,
lost, or forgotten.

After listening to my explanation, my father praised the solution highly. "You little rascal,
bring this to the company next week. I think it's worth promoting!"

"Yeah! Brother! I won't forget to bring my chain anymore! You're awesome!"

"Xiaohao, your design is very convenient. I don't have to complain about how ugly the chain is!"

...

My father's friends also showed great interest in the design, but they didn't discuss it further on the spot.
"Flow."

Sister Yunxiao chose to inject the chip at the back of her neck, while Xiaoyi placed it between her collarbones. After the injection, there was
a slight , and the injection site showed mild redness and swelling. Then, after I activated the two icons on the smart wristband,
I saw a light blue ring pattern appear on the back of Sister Yunxiao's neck and between Xiaoyi's necks. "From now on, you are
officially under my protection!"

Not long after activation, I received the physiological status from my sisters. Everyone looked at the information on my
wristband in amazement.

"So, will you know when I'm in heat from now on?" Sister Yunxiao asked softly in my ear,
her face slightly flushed.

"Hehe, yes! I even prepared a little gift for Sister Yunxiao when we get back~"

"Oh? Sister has a gift? Do I have one? Do I?" Xiaoyi asked curiously from the side. I
chuckled　 and pinched Xiao Yi's bouncy bottom. "How could we be without you!"

--------------------------------

After the city hall clerk gave me the identification and updated registration information, my parents prepared
a simple yet grand coming-of-age banquet for me. During the banquet, my parents
introduced me to several business partners from other city-states and their children, using this opportunity to expand my network.

After several rounds of drinks, night fell. After seeing off my parents and their friends, I
went home with Sister Yunxiao and my younger sister.

As soon as I entered the house, my wristband vibrated slightly. Before I could even check the notification
, Sister Yunxiao embraced me, her passionate lips pressing against mine. Her hot body exuded a strong scent
of hormones . Our lips and tongues were intertwined, and our hands quickly untied each other's clothes. In just a moment, we were
naked together. Feeling the wetness of Sister Yunxiao's lower body, I picked her up and carried her to the room.

Xiao Yi, watching us from the doorway, was clearly used to it; after all, every time Sister Yunxiao came home, she would
pounce on me so passionately.

I wantonly kneaded Sister Yunxiao's soft, firm breasts, gently stroking her already wet vulva. Her sensitive,
burning body constantly relayed the desire hidden within the body in my hands. "Xiao Hao, stop torturing me
! Give it to me! Give it to me now!" Sister Yunxiao, her lust rising, caressed my chest, stroking my penis back and forth,
her legs wrapped around my waist, swaying her slender waist, rubbing my penis against her wet vulva, wanting me
to insert it into her lower body.

But I, with one hand supporting Sister Yunxiao's buttocks and the other supporting her back, my tongue roamed over her smooth
breasts, kissing her collarbone and nipples. I gently placed her on the bed, our two naked bodies overlapping
.

"Ah~ So good!" As I gently slid into Sister Yunxiao's body, I felt the softness and
moisture surrounding me, each ring enveloping and sucking my penis. I moved gently, raising Sister Yunxiao's legs into an M
shape, clearly showing a huge object moving in and out of her smooth vulva.

"Mmm~ Mmm~ Ah~" Sister Yunxiao moaned softly with each of my thrusts, her hands reaching under my armpits
to caress my back. Feeling my fingertips gently tickling my back, I
diligently worked inside Sister Yunxiao with a rhythm of three shallow thrusts followed by one deep one.

"Ah~ Ah! Ah~ Ah~ Ah! Slower... Ah! A little deep! No... Ah! So good~ So good~ I've hit the spot
! Ah~"

Sister Yunxiao moaned with each movement, her breath coming in gasps. Her fragrant tongue licked her red lips,
beads of sweat glistened on her nose, and the flush on her cheeks and the hormonal scent emanating from her body stimulated my senses.
I leaned down and kissed her soft lips, licking from the cupid's bow to the corner of her mouth, gliding over her pretty cheeks, and gently biting her cute
earlobe.

"Mmm! Xiao Hao! So good~ Ah!"

The area behind her ear and her earlobe was one of Yunxiao's Achilles' heel; even a light touch
could make her lower abdomen contract violently and her waist and abdominal muscles tense. As I thrust faster, the sounds of
flesh colliding and Yunxiao's increasingly loud moans and cries were like a harmonious melody.

In just over ten minutes, Yunxiao had reached orgasm three times. Her whole body was flushed, and she
lay weakly on the bed, whispering beside me, "I can't take it anymore~ I can't take it anymore~ Let Yunyi do it!"

"Sister, why did you give up so quickly!"

It turned out that Yunyi had been waiting outside the door for a long time, listening to us making love in the room. I saw that
her clothes were completely off, and her fingers were still wet. Judging from the mud on her lower body, I knew
what this girl had been doing at the door. I took three steps and grabbed her slender waist, kneading her large breasts that had developed to an E cup.
Yunyi's long legs naturally wrapped around my waist, her hands wrapped around my armpits, her delicate tongue entwined with
my lips and teeth, and my erect penis easily slid down my wet lower body.

I placed Xiaoyi next to Sister Yunxiao, and leaned over the edge of the bed to kiss her nipples and areolas, feeling
the slight tremors coming from Xiaoyi's body. I gently rubbed my lower body back and forth, and the contraction and tightness in her wet cavity reflected
Xiaoyi's desire for my penis. Sister Yunxiao turned to the side and licked Xiaoyi's earlobe, kneading her own breasts
while also playing with Xiaoyi's other large breast.

Xiaoyi, who was being played with by Sister Yunxiao and me at the same time, was flushed all over, and I continued to increase
the speed of my thrusts.

"Mmm~ So good~ Mmm~~ I want it~~ So deep~~ Mmm~~ Oh~~ Ah~~ Ha~~"

Xiao Yi's soft moans echoed my movements, and as I gradually increased my speed, Sister Yunxiao got up and squatted
behind , supporting my waist while licking my anus and testicles.

After alternating between nine shallow and one deep thrusts and six shallow and one deep thrusts for about ten minutes, I felt Xiao Yi's body
tremble. I gently patted her elastic buttocks, turned her over and made her lie face down on the edge of the bed, and
entered . I started thrusting quickly.

"Ah! Ah~ Ah! So good! Ah! I'm going to die! Ah~ So exciting! Ah! Brother! Brother!!
Faster ! So good! Ah~ Mmm~~ Ah! Mmm~~"

The rear-entry position was Xiao Yi's most pleasurable position, and every collision made her cry out uncontrollably.
Her trembling breasts swayed with my movements, waves of breasts and buttocks unfolding before my eyes, and her buttocks kept
welcoming and anticipating.

With the tightening sensations inside Yunyi's vagina and the stimulation from Sister Yunxiao, after more than ten minutes, Yunyi reached her second...
After reaching my climax, I also ejaculated deep inside her.

Sister Yunxiao helped me clean the semen off my penis, and then we lay down on the bed together. I embraced two
alluring bodies, feeling their softness and smoothness. I fell into a deep sleep.

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