Ch. 406The Rinnegan and Yin-Yang Release
After awakening the Rinnegan, Gengetsu discussed eye evolution with Tsunade and advised Uchiha Shinsui about his own progress. He then explained to Ao Cang the difference between Yin-Yang Release and the techniques based on it.
- Gengetsu told Uchiha Shinsui that completing Sage Transformation and becoming a Sage could improve his chances of evolving his Rinnegan, while Shinsui said his Heavenly Eye had not awakened.
- Tsunade proposed that Heavenly Eye awakening depended on more than the pineal gland, prompting her and Gengetsu to study its Chakra flow, blood flow, organs, and brain coordination.
- After two days, Gengetsu sent Uchiha Shinsui back to Konoha and stayed with Tsunade in Shikkotsu Forest, planning to deal with Black Zetsu before traveling again.
- Gengetsu visited Ao Cang and revealed that his Rinnegan's unique eye technique was space-time traversal, which he believed had been influenced by Ao Cang and Dragon Vein Sage Chakra.
- Gengetsu explained that awakening the Rinnegan did not guarantee mastery of Yin-Yang Release Technique, distinguishing Yin-Yang Release itself from techniques that used its power.