C507 The Secret of the Large Tubewood

He heard Jirayo's question.

Immortal Zhi Ma sighed and explained to Jirayo.

"The Rikudo ninjutsu is a kind of blade that Sage of the Six Path refined using the power of the Immortals in Ninja World."

"What did it combine with? Can the two Immortals make it clear?" Jirayo was startled when he saw that Sesame Immortal wanted to say something but stopped himself. Both of you are old