Sanpei is the love interest of Serena and the biggest fan of Miette appearing in A Rush of Ninja Wisdom and A Stealthy Challenge. He has purple hair and olive green eyes. His main outfit is composed of: a blue sleeveless ninja suit, blue pants and black boots. He is voiced by Chris Patton. At his age, he is 10 years old.


  • Shinobu (Mother)
  • Saizo (Father)
  • Ippei (Older Brother)
  • Nihei (Older Brother)
  • Serena (Love Interest)
  • Miette (Worst Fear)


  1. Feeling cool to Serena
  2. Becoming a master ninja
  3. Leaning to his brothers


  1. Breaking his enemies' ideas
  2. Ruining everything
  3. Feeling shameful

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