Boruto: Naruto Next Generations S01 E172 A Signature of Fear

Iwabe, Denki and Metal pay a visit to Boruto after he lands in the hospital from overtraining. There, they meet Nattou Nishiki, a young boy who is also a patient. Rambunctious and brash, Nattou easily manipulates the three into getting him an autograph from a certain ninja feared by everyone!