The Day of the Duel

Five years later.

Time had flown by, and the Genin of that time had grown into dependable pillars of Konoha. The names of the Hatake brothers, Kakashi Sakuya and Hatake Lian, had become synonymous in the mission world with "efficiency," "precision," and "absolute completion." They were still quiet, but the aura that once kept others at a distance had become part of their strength, inspiring respect rather than mere avoidance. Nadeshiko Haku had completed her exchange studies, but remained in Konoha as an "Envoy for Friendly Relations Between Konoha and Nadeshiko Village." Her strength and beauty were equally renowned.

Five years of fighting side by side, and countless missions in which they had entrusted each other with their lives, had long since brought Shuoyue and Haku beyond the bounds of ordinary comradeship. An unspoken understanding flowed between them; beneath their cold exteriors were kindred souls burning with mutual recognition. They knew better than anyone the weight of each other's weapons, and were the only ones who could truly keep pace with one another.

At sunset. The setting sun bathed the Naka River, making it shine with an unusual radiance. Two figures walked one behind the other toward the village gates.

Haku called out to Shuoyue, who was about to leave. The golden light of sunset fell across her short silver hair, gilding it with warmth, but her icy blue eyes were more serious than ever, and even held a rare trace of nervousness.

"Shuoyue." Her voice was still cool, but carried a softness and resolve that weren't usually there.

Shuoyue stopped and looked back at her, his black eyes as still as water. (Over the past five years, he had learned to control his emotions better. He no longer needed to conceal his Sharingan in daily life, but the coldness remained deep within.)

Haku met his gaze without looking away or beating around the bush, embodying the Nadeshiko shinobi's directness to the fullest. "I love you. This isn't a passing impulse. After five years fighting side by side, I've long since confirmed my feelings for you." Her words were like a drawn blade—clean and decisive, yet carrying undeniable weight.

Shuoyue didn't seem surprised. His eyes shifted ever so slightly, but he didn't respond at once. He was used to Haku's directness, and he did have feelings for her. But his life was filled with revenge and protecting others, and he had never given this sort of emotion much thought.

Haku didn't wait for his answer. Her tone grew more solemn as she continued: "According to an ancient custom in my home, if a woman falls for a man from outside the village, she may propose a duel to decide their engagement. The victor has the right to decide everything." A fierce fighting spirit blazed in her icy blue eyes—an expression of respect for the strong, and of how seriously she took these feelings. "I, Nadeshiko Haku, hereby challenge you, Kakashi Sakuya, to a duel. The victor may make any one request of the loser, including a request to spend the rest of our lives together."

This wasn't an ordinary confession. It was the most direct and sincere way for the strong to express their love, bringing emotion and strength, respect and hope together almost perfectly.

Shuoyue watched her in silence for a long time. The water of the Naka River tinkled and murmured, as if accompanying the moment.

He knew Haku. He knew this wasn't a joke, or a whim. In the tradition of her bloodline and culture, she was making her most solemn promise and request.

At last, his thin lips parted. His voice was as calm as ever, but carried a seriousness he had never shown before. "Time. Place."

He asked no unnecessary questions, and made no coy refusal. He accepted her challenge and respected her way of doing things.

The corners of Haku's mouth lifted by the slightest fraction, in an almost imperceptible smile—that was how she showed her joy. "Tomorrow at dawn. The Valley of the End."

Choosing the Valley of the End held profound meaning. It was where the First and Uchiha Madara had fallen out, and where Naruto and Sasuke had ended their feud. It symbolized the rivalry and bond between the strongest.

The day of the duel:

The first light of dawn fell upon the enormous statues in the Valley of the End, and the water roared. Shuoyue and Haku stood dozens of meters apart.

There was no referee and no audience. Only the two of them, with their surging fighting spirit and feelings too complex for words.

This battle wasn't a fight to the death. It was a clash of skill, resolve, and heart.

Haku's Nadeshiko Style Taijutsu and precise skills with concealed weapons had reached perfection. She moved like a butterfly, her attacks like a swarm of bees—beautiful and dangerous in their icy precision. Shuoyue's movements were simpler and more efficient. He combined the Sharingan's insight into Uchiha genjutsu, the Lightning Release swordsmanship taught to him by Kakashi, and the strange fighting techniques Obito had taught him. Every move held immense strength and a chilling intent to kill.

The waterfall seemed to watch in awe, and new marks were carved into the enormous rocks.

They fought from dawn until sunrise, then from sunrise until noon. At last, they were exhausted, their chakra nearly depleted.

After one final collision, both fell to the ground, their weapons slipping from their hands. Shuoyue had the slightest edge; the tip of his Kunai stopped an inch from Haku's throat. Haku's Senbon, meanwhile, rested against the vital point over Shuoyue's heart.

A draw.

They panted heavily, their clothes soaked with sweat. Both were covered in scrapes and bruises, yet their eyes shone as they looked at one another.

Suddenly, Haku was the first to laugh. It was a quiet laugh, but utterly genuine. She lowered her Senbon. Shuoyue slowly lowered his Kunai as well.

He watched her smiling face in silence for a moment. Then he did something that surprised even Haku.

He held out his hand to her.

Haku hesitated, then reached out and took it. Shuoyue gave her hand a gentle tug and pulled her to her feet.

They stood close enough to feel each other's breathing and heartbeat.

Looking at his reflection in her icy blue eyes, Shuoyue finally spoke, his voice low but clear. "My request: stay by my side."

It wasn't an order, but more like a clumsy confirmation and answer. In his own way, he had accepted her feelings and made his own "request."

A faint blush appeared on Haku's face. She squeezed his hand in return and nodded solemnly. "All right."

There were no flowery words or sweet vows. Just a duel fought with all their strength, and a simple request and promise.

This was the engagement custom that belonged to Kakashi Sakuya and Nadeshiko Haku alone.

From that day on, Konoha's "Frost Blade" would always have a "brilliant as the snow" companion from Nadeshiko Village by his side. Their future might still be full of trials and darkness, but at least they would no longer be alone.