Introduction of Taiji Spiral Pills

Taiji Spiral Pill is a super endurance skill among Naruto, especially the super endurance skill formed by the combination of Naruto Uzumaki and four generations of Naruto Namikaze Minato's spiral pill chakra. Known as "the strongest spiral pill" (S-class), plus Uzumaki Kushina's chakra, it can evolve into a real Taiji spiral pill.