Shikkotsu Forest
Shamu followed the Slug Sage onward.
Shikkotsu Forest was damp everywhere, with lush vegetation.
The fog was thick, making the sky over the entire Shikkotsu Forest somewhat gray and dim.
It was not as though there were no other slugs in Shikkotsu Forest. On the contrary, Shamu saw many normally sized slugs on the trees and in the grass.
By normal, he meant slugs no bigger than a little finger, not Summoning Beasts.
"Slug Sage, what are those little slugs?"
The Slug Sage answered as she moved forward.
"They were all just born. They can be considered my children, but they have not developed intelligence."
Shamu fell into thought.
About ten minutes later, they arrived at a cliff wall.
There was a pool beneath the cliff, filled with a milky white liquid.
The Slug Sage moved to the edge of the pool.
"When practicing Shikkotsu Forest's Sage Mode, the body constantly restructures itself. That is why it is so painful."
"Only those with exceptionally fast recovery, or those who know the Strength of a Hundred Sealings Technique developed by little Tsunade, can learn it."
"If you cannot endure it, you can jump into the pool to quickly recover from your injuries."
"It can also replenish lost life essence."
Shamu walked over to the pool and dipped a finger into the liquid.
It was white and cloudy, like dyed water, yet it seemed to contain a special kind of energy.
"Slug Sage, what is this liquid?"
The Slug Sage replied calmly.
"This is all my Life Essence."
"Oh..."
Shamu calmly wiped his hand clean.
"Who will teach me Sage Mode?"
"Let Katsuyu teach you. I hope you will be able to save more living beings in the future."
So Tsunade's slug was called Katsuyu.
"Don't worry, Slug Sage. I'll