Arc 18The Steel Star Chain
After defeating Ōtsutsuki Ran, Tsubasa prepared the Shinobi World for a stronger invasion by building defenses and training a new generation of disciples. The arc ended as Ōtsutsuki Genshō’s vanguard reached the fortified perimeter beyond Mars.
- Tenmei and the allied forces fought Ōtsutsuki Ran’s legion at Mars, but suicide bombers and the enemy’s healing troops overwhelmed their conventional defenses until Tsubasa and the Ten Family turned the battle.
- Naruto Uzumaki brought the Kurama into the fight, and Tsubasa defeated Ran as the allies destroyed the remaining Ōtsutsuki forces.
- Tsunade and the leaders debated whether to flee the Shinobi World, while Tsubasa revealed the greater threat from Ōtsutsuki Genshō and organized a migration alongside plans to defend the planet.
- Tenpei and Tenna led the chosen migrants away aboard the Ten-Tails, while Shikamaru and the remaining shinobi built the Steel Star Chain around Mars.
- Tsubasa offered Ran’s energy to the Will of the Shinobi World, strengthening the planet, then established the Immortal Venerable Academy to train future defenders.
- Tsubasa guided his eleven disciples through years of study, cultivation, law training, and combat, then forged them personalized immortal weapons and armor.
- Ōtsutsuki Genshō sent Shadow Scouts to investigate the Shinobi World, but Shikamaru’s defenses destroyed their ship and the scouts.
- Ōtsutsuki Genshō mobilized a million warriors and sent Ōtsutsuki Taku, Ōtsutsuki Gō, and Ōtsutsuki Gen with a vanguard fleet, which arrived beyond Mars and detected hidden traps and powerful energy sources.