The Day of the Duel

Five years later.

Time flies, and the genin of yesteryear have grown into the reliable backbone of Konoha. The names of the brothers Kakashi Sakuya and Kakashi Lian have become synonymous with "efficiency," "precision," and "absolute completion" within the mission circuit. Though they remain reticent, that aura of "keep away" has integrated into their strength, commanding awe rather than mere avoidance. Nadeshiko Haku completed her exchange studies, yet she has remained stationed here as a "Special Envoy for Friendly Exchange between Konoha and Nadeshiko," her power and beauty equally renowned.

Five years of fighting side-by-side and entrusting their lives to one another through countless missions have pushed the relationship between Sakuya and Haku far beyond that of ordinary comrades. A tacit understanding that requires no words flows between them; beneath their cold exteriors lie burning souls that recognize one another. They are the people who best understand the weight of each other's weapons, and the only ones truly capable of keeping pace with one another.

At sunset, the Naka River is bathed in the evening glow, shimmering with a peculiar light. Two figures walk one after the other toward the village gate.

Haku calls out to Sakuya just as he is about to leave. The golden radiance of the sunset spills over her short silver hair, plating it in a warm light, but her ice-blue eyes are more earnest than ever, even carrying a trace of rare nervousness.

"Sakuya." Her voice remains cold, yet it carries a soft firmness not usually present.

Sakuya stops and turns to look at her, his black eyes as calm as water (in five years, he has learned to better control his emotions; he no longer needs to cover his Sharingan in daily life, yet the coldness deep within remains).

Haku looks straight into his eyes, without any circumlocution; the directness of a Nadeshiko ninja is displayed to the fullest at this moment: "I like you. This is not a momentary impulse, but a sentiment I have confirmed in my heart after five years by your side." Her words are like a blade drawn from its sheath—clean, decisive, and carrying an unquestionable weight.

Sakuya does not seem surprised; his gaze merely shifts slightly, and he does not respond immediately. He is long accustomed to Haku's directness, and he is not without feelings for her; it is simply that his life has been filled with vengeance and protection, and he has never carefully considered such emotions.

Haku does not wait for his response, continuing with a tone that becomes even more solemn: "According to the ancient customs of Nadeshiko Village—if a woman fancies a man from another land, she may propose a duel to betroth them. The winner has the right to decide everything." Her ice-blue eyes burn with intense fighting spirit; it is a respect for the strong, and the ultimate seriousness regarding this affection. "I, Nadeshiko Haku, hereby issue a duel invitation to you, Kakashi Sakuya. The winner may make any request of the loser, including—a request to spend the rest of our lives together."

This is no ordinary confession; it is the most direct and earnest way of expressing love, belonging to the strong. It combines emotion and power, respect and expectation, almost perfectly.

Sakuya watches her in silence for a long time. The sound of the Naka River flowing is rhythmic, as if providing accompaniment for this moment.

He understands Haku and knows this is no joke, nor is it an impulse. This is the most solemn promise and request she can give, in the way of her own bloodline and culture.

Finally, his thin lips part, his voice still flat, yet carrying an unprecedented earnestness: "Time. Place."

No unnecessary questions, no coy refusals. He accepts her challenge and acknowledges her method.

The corners of Haku's mouth lift in a nearly imperceptible arc—her way of expressing joy. "Tomorrow at dawn. Valley of the End."

Choosing the Valley of the End is deeply significant. It is the place where the First Hokage and Uchiha Madara broke ties, and where Naruto and Sasuke ended their grievances. It symbolizes the duel and bond between the strongest.

The day of the duel:

The faint light of dawn spills over the giant statues in the Valley of the End, the water roaring. Sakuya and Haku stand dozens of meters apart.

There is no referee, no audience. Only the two of them, and the surging fighting spirit and unspeakable emotions between them.

This battle is not a fight to the death, but a collision of technique, will, and heart.

Haku's Nadeshiko Style taijutsu and precise hidden weapon techniques have reached perfection; her form is like a butterfly, her attacks like a bee, carrying extreme beauty and danger within the coldness. Sakuya's movements are more concise and efficient, blending the Sharingan insight of Uchiha genjutsu, the Lightning Style sword techniques taught by Kakashi, and the bizarre combat skills taught by Obito. Every move contains immense power and cold killing intent.

The waterfall looks on, and the giant rocks bear new scars.

They fight from dawn until sunrise, and from sunrise until midday. Finally, exhausted, their chakra nearly depleted.

After the final collision, both fall to the ground simultaneously, their weapons slipping from their hands. Sakuya is half a move ahead; the tip of his kunai rests an inch from Haku's throat. Meanwhile, Haku's senbon is pointed at the vital spot over Sakuya's heart.

A draw.

The two pant heavily, sweat soaking their clothes, their bodies covered in scrapes and bruises, yet their eyes look at each other with extraordinary brightness.

Suddenly, Haku begins to laugh, though it is very soft, it is incredibly real. She retracts her senbon. Sakuya slowly retracts his kunai as well.

He watches her smiling face, silent for a moment, and then performs an action that surprises even Haku.

He reaches out his hand to her.

Haku freezes for a moment, then reaches out to take it. Sakuya pulls with a slight effort, drawing her up from the ground.

The two stand very close, able to feel each other's breathing and heartbeats.

Sakuya looks at his own reflection in her ice-blue eyes and finally speaks, his voice low but clear: "Request: Stay by my side."

This is not a command, but more like a clumsy confirmation and response. In his own way, he accepts her feelings and gives his own "request."

A faint blush appears on Haku's face; she squeezes his hand firmly and nods solemnly: "Okay."

No flowery language, no sweet vows. A duel fought with all their might, a simple request and promise.

This is the betrothal method unique to Kakashi Sakuya and Nadeshiko Haku.

From this day on, by the side of Konoha's "Frost Blade" will always be a "cool-headed and brilliant" companion from Nadeshiko Village. Their future may still be full of challenges and darkness, but at the very least, they are no longer alone.