survives a heart rupturing sound attack

“Wha-?”

“These were called mandrake mines, right?”

He pulled the string at the bottom of the pot to wake it up like he was activating a party cracker. The awakened(?) mandrake hopped up in front of Kanzaki Kaori’s face.

At the same time, Kamijou covered himself in the sky-blue once more and broke through a nearby window.

The indoor space was filled with a scream even shriller than the shattering glass.

“Gah!?”

Kamijou had unleashed that scream himself, but his skull was still badly shaken. It was this bad even with the sky-blue shell covering his entire body. Was it Othinus who had said the scream traveled from the inner ear to the heart? What would have happened to him without the shell?
***
He heard the sound of breaking construction materials from the area the scream had hit and thus where everyone should have been defeated. That was the sound of someone’s merciless grip crushing the stone wall near the windowsill that had stood for centuries.

She was getting up.

Kanzaki Kaori would soon be back in action inside that hallway.

“She is one of the world’s fewer than twenty Saints. A single mandrake born from a sinner’s bodily fluids is not going to kill her so easily!”

***
And his eyes met with the eyes of the creepy root.

(What!?)

“Knock it away, human!! If you are within range of its scream, the vibration will pass from your inner ear and rupture your heart!!”

He trusted the voice he heard and acted accordingly.

He swung his sky-blue arm around to strike the mystery plant that had shot up to face height and launched it into the distance just before a high-pitched noise erupted out like someone scratching at glass. Some crows and nightjars fell to the ground. Their nests in the trees must have been in range of the scream. This was more brutal than concussion grenades that were meant to rattle the brain.