The Perception Compass and Fighting Spirit perception.
Ever since he had helped transfer Fighting Spirit to Kagaya Ubuyashiki last time, Su Chen's understanding of Fighting Spirit had surpassed that of the vast majority of people.
One could say that Su Chen's understanding of Fighting Spirit was now at the grandmaster level.
The instant he saw Jigoro Kuwajima, Su Chen noticed the aura faintly radiating from him.
Vast, deep, powerful!
His Fighting Spirit was as vast as the ocean, though its color was somewhat dark. It looked as though it had been subdued for a long time.
Presumably, this was due to old age. Fighting Spirit would weaken as one's physical condition declined.
But it was easy to see that he must have been a formidable fighter in his youth.
Because this Fighting Spirit was considerably stronger than that of almost any Hashira who had not awakened a Demon Slayer Mark.
"Grandfather! Grandfather!"
Zenitsu saw Jigoro Kuwajima taking his afternoon nap.
Tears of excitement spilled from his eyes.
Then he ran over, sparks of electricity crackling through the air, and shot straight into Jigoro Kuwajima's arms.
Jigoro Kuwajima stumbled and toppled backward with Zenitsu.
He woke up.
The pain woke him.
Since Hashira were only highly sensitive to killing intent, the elderly Jigoro Kuwajima had not immediately noticed Zenitsu's arrival.
Of course, another reason was that Zenitsu had now fully mastered Thunder Breathing.
It was only natural that Jigoro Kuwajima had failed to notice him.
Jigoro Kuwajima was rather angry now, not knowing who had ruined his pleasant dream.
As soon as he opened his eyes, he discovered that it was his dear disciple, Zenitsu!
Just as he was about to show some affection as a master, he suddenly heard Zenitsu rambling, "Boohoo, Grandfather, thank goodness you're not dead! I thought