Just as Takahashi Yū was wondering why Black Zetsu actually seemed unconcerned about the Rinnegan.
A pitch-black humanoid creature poked his head out of a distant tree trunk.
Black Zetsu, a product of Kaguya Ōtsutsuki's will, had been left on earth as her contingency when Hagoromo Ōtsutsuki, the Sage of Six Paths, and his younger brother Hamura Ōtsutsuki joined forces to seal her.
For thousands of years, Black Zetsu had worked tirelessly to revive his mother. Inciting wars and manipulating the Uchiha were all efforts he had made to bring her back.
What had he done wrong?
Through his efforts, another pair of Rinnegan had finally appeared in the shinobi world!
But...
Black Zetsu watched Takahashi Yū in the distance, gripping a White Zetsu in each hand as weapons and swinging them with tremendous force!
Mom! The otherworldly enemy you've always feared is here! What should I do?!
He had no chakra, yet possessed an unrivaled physical body! He could also keep regenerating, and even Black Zetsu, who had lived for thousands of years, could not see through his killing intent.
Even every part of his body could block and wear away the energy of the shinobi world, including Yin-Yang Release!
Black Zetsu had yet to make himself known to Madara. He had been watching Takahashi Yū, whom he considered an "otherworldly enemy," and constantly probing him. But even Yin-Yang Release approaching the Six Paths level was blocked by [Dan-Ability]!
What should I do?
The Rinnegan I've spent thousands of years scheming for is about to fall into an outsider's hands!
But Black Zetsu could do nothing!
He could not think of anyone who could stop Takahashi Yū!
Black Zetsu shook his head, forcing himself to calm down.
It's fine! First, make sure I'm safe!
I'm Mom's only hope...
Black