Because Naruto is "slow to catch on," Kakashi introduces a training method only Naruto can perform due to his massive chakra reserves.

Naruto uses special chakra-sensitive litmus paper to discover his own affinity. When the paper rips in half, it confirms his natural element is , which Kakashi notes has the highest offensive potential. The Shadow Clone Training Method

Elsewhere in the village, is shown playing shogi with Shikamaru . Asuma makes a symbolic move, sacrificing a "knight" to protect the "king". He leaves Shikamaru with a riddle: the "king" of Konoha is not the Hokage, but something else that Shikamaru will one day understand. The First Step: Cutting the Leaf

Yamato is brought in to oversee the training because the high-intensity practice risks leaking the Nine-Tails' chakra. Yamato explains that his is a rare combination of Earth and Water natures, a feat normally only possible for those with a Kekkei Genkai .

: Kakashi explains that by using 1,000 clones, Naruto can essentially complete 1,000 hours of training in just one hour.

), Naruto begins an intensive training regimen under Kakashi and Yamato to develop a new, original jutsu. This episode marks a pivotal shift as Naruto moves beyond basic techniques to master . The Secret of Chakra Nature

: When a Shadow Clone is dispelled, the user gains all the experience and knowledge that clone acquired.

Kakashi explains that advanced ninjutsu requires two components: (like the Rasengan) and Change in Nature . He outlines the five basic elemental natures: Fire ( Katoncap K a t o n Wind ( Fūtoncap F ū t o n Lightning ( Raitoncap R a i t o n Earth ( Dotoncap D o t o n Water ( Suitoncap S u i t o n