Nine-Tails and Naruto

"I plan to hand this scroll over to Hiruzen later. With his talent, perhaps once he cracks it, he'll be able to put it to tremendous use." "As for this guy lying on the ground right now..." "After the Four-Tails, Son Goku, was sealed by Fugaku Uchiha using Susanoo, I originally thought that if we wanted to obtain the Four-Tails again in the future, we'd have to control Fugaku Uchiha, make him activate Susanoo to undo the seal, and only then try to release the Four-Tails.