Whoosh!
A phantom figure shot out from Tobitake Tonbo's forehead and began flying toward the sky.
"This feels pretty damn good."
Tobitake Tonbo flew through the air, looking down at his own body below.
He felt as though even his perception had changed.
In his Spirit Transformation state, he felt that his perception had grown stronger.
In his Spirit Transformation state, Tobitake Tonbo formed hand seals and expanded his senses.
His perception passed through Konoha's streets and shot beyond Konoha Gate, evolving from its former linear range into something far more powerful.
His awareness of his surroundings became sharper.
"As expected, I can still form hand seals and refine chakra in my Spirit Transformation state. I can even use some ninjutsu."
But as he looked at his motionless body below, he felt that this technique was not all that useful.
Tobitake Tonbo tried a few other things.
He could form hand seals to use all kinds of abilities, including sensory ninjutsu, and could even lend out chakra.
This ability was quite good.
He descended into the body of a wild boar outside Konoha.
Oink, oink!
The wild boar's feral gaze immediately became bright and clever.
It even let out two cries.
"The control granted by this Spirit Transformation state is quite good too. It truly is a major trump card against enemies."
Controlling an enemy's body and then using it to kill enemies who were not wary of their companions was practically a ninja's ultimate killing technique.
For Tobitake Tonbo, it was also important material for studying the power of the soul.
The evolution of Heart of Steel required this sort of material.
Soul power and physical power had always been important foundations for ninja.
Now that he had finally gone through the Book of Seals, he finally had enough