Kakashi’s Modification Plan

"One of them?" "I plan to combine it with Sealing Jutsu, too. For that part, I'll need you and Kushina to cooperate. As for the rest, leave it to me and Tsunade. After all, the best way to support a Mangekyo is with the First Hokage's Cells. But as you know, Danzō carried out who knows how many experiments before he succeeded just this once. That method absolutely cannot be used on Kakashi." Orochimaru turned his head and looked at Yamato, who was standing to the side.