Ch. 61The Ambition of Sword-Riding Immortal Flight
Feng interrogated the thief Five-Inch Nail and learned about two nail-controlling techniques, then secured the original ninjutsu for controlling kunai. After Kentaro returned with the scrolls and admitted killing Five-Inch Nail, Feng began studying the techniques with him.
- Feng ordered Five-Inch Nail beaten until he revealed his name, his two nail-controlling ninjutsu, and how he had obtained them.
- Five-Inch Nail said he still had the original technique for controlling kunai, and Feng promised to spare him and reward him if he retrieved it.
- Feng sent Kentaro and a squad with Five-Inch Nail to recover the original scroll from Ichinoshuku in the Land of Stone.
- Kentaro returned five days later with both scrolls and admitted that he had killed Five-Inch Nail after discovering the thief planned to sell the ninjutsu.
- Feng confirmed the scrolls were genuine, sent Kenjiro and the others to training, and gave Kentaro the nail-control technique to study while he read the kunai-control version.