This pair of eyes is called the Evil-Breaking Eye in the East, and TRUE EYES in the West.
In the mouth of the male protagonist of this article, it is called dead fish eyes...
Ye Lan: "If you have the ability, you can say it again!"
Qiye: "You want to kill the last demon-slayer and defender of this century...!"
Ye Lan: "A fairy, right?"
Qiye: "Uh... Um."
Ye Lan: "Oh, then I will further contribute to your great cause..."
"Ah!!!!"