Konohamaru’s Rasengan Training – Naruto Shippuden 422
Naruto Shippuden 422 begins a two-part filler special where we follow the story of Konohamaru as he develops his own type of Rasengan from scratch and uses it against Pain. Naruto goes in and out of missions while Konohamaru directly concentrates on developing his Rasengan while using his sexy jutsu.