"Buzz..."
Kakashi and Obito lay side by side as they had back then, their heads nearly touching.
Lin knelt between them.
"You've both grown so much, while I'm still the way I was back then..."
Medical ninjutsu chakra glowed in Lin's hands. A warm smile appeared on her lips as she kept talking about the old days.
"Lin, you'll always be this beautiful..." Obito said tenderly.
Kakashi kept one eye open, watching them the whole time. His eyes were rimmed red, and he could not say a word as the pain spread through his heart.
Were his companions finally going to leave him alone in this cold world...
"Kakashi, even without us, you still have many people..."
As if he had guessed what Kakashi was thinking, Obito Uchiha said softly, "You have your teacher, your students, your parents, and in the future... you'll have children of your own... But me... I only have Lin left..."
He smiled, utterly content. "So live well. Don't come disturb Lin and me."
Tears streamed down Kakashi's face.
"Lin... Obito..."
At last, the emerald-green light gradually faded.
Kakashi slowly opened his eyes, then immediately widened them slightly.
Because...
A short blade was embedded in Obito's heart, and its hilt was in Lin's hand.
"Obito!"
Blood tears flowed from Kakashi's Sharingan.
"Kakashi..."
Blood spilled from Obito Uchiha's mouth, yet he smiled blissfully. "This... is good enough... Thank you... Thank you, Lin..."
With trembling hands, he shoved a vial into Kakashi's palm. "Your physique and Sharingan aren't compatible. These are the First Hokage's cells. Later, find somewhere safe and inject them into yourself..."
"Obito..."
Kakashi rolled over and rose, clutching his body in unbearable grief.
"Kakashi..."
But Lin reached out and gently pushed his arm.
Her eyes red, she smiled. "Go do what you need to do."