Certainly! Here's the revised version with corrections:
"Your... insolence towards my... Ely-... deserved nothing less than death."
Serena's immense pressure caused both Mercy and Anathisa to gasp for air. I was somewhat able to manage since even her angry face was so cute. (only for me... I guess?)
The air in the room trembled, and the windows cracked from her pressure.
"Rena... I think that's enough?"
"I don't care if you're a holy saint or whatever. I'll tear that filthy mouth of yours apart right now."
As Serena stood up, I cautiously glanced at her expression...!?
Her deep sapphire eyes shone red like blood, with pupils elongated like those of a reptile.
Wh-What on earth...!?
"S-Someone... He-!?lp."
"What's wrong? You should call those knights or whoever else you want. But know that they'll all end up drenched in blood because of you."
"Ah... Ahh..."
With a twisted grin, Serena slowly approached Mercy.