Arc 31The Hidden Bloodline
Senju Chen expanded the Land of Rain’s trade network, uncovered a Konoha infiltration linked to Black Zetsu, and awakened powerful ocular and fused abilities. He strengthened his ties with the Uchiha and ended the arc considering Shikkotsu Forest despite Tsunade’s warning that its Senjutsu could kill him.
- Senju Chen arranged trade and transport agreements with the four great villages, then advised Nagato on how to manage them through freight deals, hired ninja, and a bank.
- After returning to Konoha, Senju Chen exposed evidence that someone inside the village had sabotaged the Joint Factory to provoke war with Iwagakure, and traced falsified records to seven identities once concealed under Root.
- Senju Chen and his investigators found foreign soil and a moving black substance in altered records, which Senju Chen recognized as a mark left by Black Zetsu.
- The system rewarded Senju Chen for saving the Uchiha Clan, and he fused their bloodlines to awaken the Eternal Mangekyō Sharingan and test its time-altering ocular space.
- Senju Chen fused his reaction nerves with lightning abilities and combined Wood Release with the Uzumaki bloodline, creating the thunder god and wood god bloodlines.
- Senju Chen gave Naruto Uzumaki and Sasuke Uchiha Bouncing Flight Shoes, then revealed his Uchiha heritage to Uchiha Fugaku and asked him to keep his Sharingan secret.
- Senju Chen outlined a plan for the Konoha Military Police Force to expand across the Land of Fire and neighboring nations, while Tsunade warned that the plan could meet resistance.
- Senju Chen asked to practice Senjutsu in Shikkotsu Forest, and Tsunade explained its deadly cost before pleading with him not to risk his life.