This time, Yushiro invited Lin Yoriichi into the room.
Lin Yoriichi could tell that although Yushiro was still trying hard to remain outwardly calm, he could not suppress the curve of his lips.
At that moment, Miss Tamayo knelt down and said to Lin Yoriichi:
"I've conducted some experiments with your blood recently and obtained some results."
"But to continue my research, I'll need you to provide more blood, and I'll also need you to demonstrate the characteristics of the Demon Slayer Mark."
Hearing this, Lin Yoriichi activated his Demon Slayer Mark, while Miss Tamayo took out instruments to examine him.
A few minutes later, surprise appeared on Miss Tamayo's face:
"Your body temperature has risen, and your heart is beating unbelievably fast."
"If the conditions for anyone other than you to activate the Demon Slayer Mark are a body temperature above 39 degrees and a heart rate exceeding 200 beats per minute..."
"Under those conditions, simply remaining alive would be a miracle, let alone continuing to fight."
"This is undoubtedly drawing on life reserves. Of course it would cause astonishing damage to the body!"
Hearing Miss Tamayo's words, Lin Yoriichi instinctively frowned.
He remembered that in the original story, Giyu Tomioka and Sanemi Shinazugawa were the only two Hashira in the Demon Slayer Corps who had participated in the final battle and survived.
And both of them had activated their Demon Slayer Marks!
In other words, even though they had survived in the original story, they were still destined not to live past twenty-five!
As he thought of this, Lin Yoriichi heard Miss Tamayo continue:
"If the Demon Slayer Mark draws on life reserves, then the corresponding solution should be to replenish what has been depleted."
"As I mentioned when I had Chachamaru deliver the message to you, combining