Qianyu took a small sealing box from his robes.
Inside, two Three-Tomoe Sharingan were submerged in pale green nutrient fluid.
They had been brought back from the Uchiha Clan Compound by Abin on the night of the massacre.
Qianyu took one out and placed it in his palm. A chill seeped into his skin.
He looked once more at Kakashi's eye socket.
"Sorry, Kakashi-senpai," he said softly. "I'll return it once this is over."
His fingertips pressed against the edge of the eyelid. Chakra condensed into an incredibly fine blade.
Slice.
Blood seeped from the gap in the eyelid and ran down the bridge of his nose. Qianyu's hand was steady, and the procedure went faster than expected. After more than a decade, Obito's eye and Kakashi's socket no longer fit together perfectly; scar tissue had grown along the edges.
He gently used chakra to separate those adhesions.
Then he removed it.
Obito's eye lay in his palm, its three tomoe revealed with an eerie gleam.
Qianyu placed it in the second compartment of the sealing box. Tiny ripples spread across the nutrient fluid.
He picked up the other Sharingan.
He aligned it with the empty socket and gently pushed it in.
Chakra began its work. Fine, hair-thin woody fibers extended from Qianyu's fingertips, linking blood vessels, nerves, and eye muscles. Wood Release's vitality displayed astonishing compatibility at this moment—perhaps because the Senju and Uchiha were two sides of the same coin, or perhaps because the chakra within Qianyu had long since fused with the essence of the Otsutsuki. The new eye began forming a connection with Kakashi's body.
The bleeding stopped. The wound healed. The scars faded away.
When Qianyu withdrew his chakra, Kakashi's left eye was fully closed. His eyelid was smooth, with no trace of surgery left