The Cause of Dan’s Death

"Now that the exact same phenomenon has appeared again, I have no choice but to wonder whether these two experiments might somehow complement each other." "As the developer of Cloning Technology, Orochimaru, I hope you can unravel the mystery behind this." "Teacher Sarutobi, I will not conduct human experiments." Hiruzen Sarutobi knew Orochimaru was doing this to avoid staining his record before taking over as the Fourth Hokage, lest it lead to unforeseen complications.