Kakashi could now use Kamui with his Sharingan.
This ability could send objects into another dimension.
But Kakashi did not know what kind of place that other dimension was, nor did he dare send himself there, afraid that he might never return.
Obito was far more capable. Since it was his own eye, his use of Kamui vastly surpassed Kakashi's.
Cold sweat covered Kakashi's face as he cried out, "Could it be that Obito used Kamui to send himself into another dimension?"
"That's right, you got it. The reason Obito can appear and disappear like a ghost is because of that."
Kakashi struggled inwardly.
Naruto advised, "Give it up, Kakashi-sensei. Your Sharingan was transplanted from Obito, so you can't compare to him in proficiency. Be careful not to enter the Kamui Dimension and fail to come back."
"But you can send Obito a letter."
A scheming expression appeared on Naruto's face.
"Send a letter?" Kakashi asked, puzzled.
Naruto took out a sheet of paper and wrote on it: Obito, come back to Konoha. Everyone in Konoha will forgive you, including Naruto.
Naruto said, "Kakashi-sensei, use Kamui to send this letter into the Kamui Dimension."
Kakashi understood at once. He removed his forehead protector, revealing his Sharingan, and used Kamui.
Space twisted, and the letter in Naruto's hand slowly vanished into the distortion.
At the same time, Obito, who was hiding in the Kamui Dimension, was treating his wounds.
Suddenly, a letter drifted down.
Obito caught the letter and saw the words written on it: Meet at the Konoha Village shrine in three days. —Naruto.
Obito was truly shocked. Naruto could actually send letters into the Kamui Dimension.
Obito thought it over carefully. "Naruto can't possibly have that kind of ability. It must have been Kakashi. Kakashi has my eye."
In