Free Shinobi in Naruto(With Divine Purple Card)

The scorching midday sun bore down on the rocky outcrop overlooking the tranquil scenery of the Cones Country. It was a remote location, far removed from the bustling epicenters of the elemental nations, marked only by the sparse scattering of native flora and the occasional bird of prey soaring overhead. The gentle breeze carried the scent of wildflowers and the faint rush of the nearby river, a scene of picturesque tranquility disrupted only by the swift and intense exchanges taking place below.

Sasuke Uchiha, the last son of the Uchiha clan, and Kai, the enigmatic stranger who had taken it upon himself to guide the Uchihas, were sparring under the merciless summer sun. Despite his tender age, Sasuke's movements were fluid and precise, a testament to the rigorous training he had undergone over the past few months. The bright red Sharingan in his eyes swirled with three tomoes, a stark contrast against his jet-black irises, marking the immense progress he'd made.

Despite the searing heat and the sheer intensity of the spar, Sasuke's determination never wavered. He knew the significance of his training, the importance of growing stronger. His opponent, Kai, was an unfathomable enigma, possessing powers that far surpassed his understanding. Yet, the man held nothing back, pushing Sasuke to his limits, guiding him to new heights.

"Chidori!" Sasuke yelled, forming the hand signs quickly as a fierce surge of lightning gathered around his right hand, emitting a high-pitched chirping sound.

Kai merely stepped back, his stoic features betraying no signs of anxiety or distress as Sasuke lunged forward. A swift sidestep and Kai evaded the Chidori effortlessly, a light tap on Sasuke's shoulder sending the young Uchiha sprawling to the ground.

"Too predictable, Sasuke," Kai commented, his tone level, his gaze unwavering. "Your Chidori is powerful, but without the element of surprise, it's a double-edged sword."

Sasuke grunted, wiping the sweat off his forehead as he rose to his feet. "Again," he demanded, not willing to back down.

At the side of the makeshift training ground, Mikoto Uchiha watched with a small smile playing on her lips. The sight of her son, growing and learning, filled her with a sense of pride and warmth. Yet, it was tinged with a pang of sorrow. She was reminded of the carefree days when Itachi and Sasuke used to spar, their laughter ringing through the Uchiha compound. Now, only echoes of that past remained, replaced by the harsh reality of their present.

However, it wasn't only the sight of her son that stirred emotions within her. Watching Kai, who had seamlessly integrated himself into their lives, also prompted introspection. He was an enigma, a man of few words and fewer expressions, but his actions spoke volumes. Despite his outward detachment, his commitment to training Sasuke, his dedication to protecting them was undeniable. Yet, there was a distance, a wall that separated him from them, an emotional barrier that he seemed unwilling or unable to cross.

"Enough for today," Kai's voice cut through her thoughts. Sasuke had been going at it relentlessly for hours, and even though he would never admit it, Mikoto could tell he was nearing his limit. His determination, while admirable, was also his greatest weakness. He was too stubborn, too unwilling to show any sign of weakness, even to his mother. She knew where he had inherited that trait from. After all, the Uchiha were known for their pride.

"You are ready for the mark now." Kai said, gathering chakra in his hands. His voice, though void of inflection, carried a weight that seemed to still the ambiance of the rocky terrain around them.

Sasuke's breath hitched. His fatigue-ridden features lit up with excitement as he watched Kai's concentrated efforts. He had heard of the Lotus Seal from Kai before, the staggering potential it held, and the level of control and power it could provide. It was a gift, a weapon, and now it was within his grasp.

Kai's eyes were narrowed, his focus absolute as he channeled his chakra, condensing it into a small, pulsating ball of energy. The energy hummed with life, and its vibrant, lotus-like shape was a breathtaking sight to behold. He raised his hand, the luminous orb of chakra hovering just above his palm.

Sasuke watched, his heart pounding in his chest, his own chakra responding to the potent energy before him. He knew the mark signified a new step in his journey, a new level of connection and trust between him and Kai, and it was a prospect that both thrilled and terrified him. But more than anything, it reaffirmed his resolve to become stronger.

Stepping forward, Sasuke shed his shirt, turning his back to Kai. His skin prickled with anticipation, his muscles coiling in nervous tension. The young Uchiha could feel the weight of his clan's expectations and his personal ambitions bearing down on him, but he remained steadfast.

Kai's hand came to rest lightly on the middle of Sasuke's back, the heat of the chakra ball seeping into his skin. Sasuke steeled himself, a surge of determination flooding his veins as the lotus mark began to form.

Kai's voice filtered through the tension, his words neutral as always, "Remember, this is not just a source of power. It's a tool, a weapon, and most importantly, a responsibility. It requires control, balance, and understanding. Do not rush to exploit its strength."

"I understand," Sasuke replied, his voice firm despite the searing sensation spreading across his back.

With a final pulse of energy, the mark was set. Sasuke grunted, taking a sharp breath as a rush of foreign chakra flowed through him. It was powerful, raw, and wild, but he felt an inherent connection to it, like a piece of a puzzle falling into place.

Kai pulled back, the chakra ball dissipated, leaving behind an intricate lotus tattoo marked on Sasuke's skin. "This is the first step, Sasuke," he said, turning away, his words hanging in the air like an unfinished promise.

Mikoto, who had been silent throughout the process, felt a myriad of emotions coursing through her. There was pride in her son's courage, fear for the path he had chosen, and a strange sense of gratitude for Kai. Her eyes strayed to the enigmatic man, watching as he withdrew from Sasuke, a careful, almost deliberate distance.

As Sasuke looked at his reflection in the river, the Lotus Seal vibrant against his skin, he felt a renewed sense of purpose. The journey he had embarked on was far from over, and the road ahead was steep and fraught with challenges. But as he touched the lotus mark, feeling the raw power pulsating beneath his skin, he knew he was ready to face them head-on.