Zhang Yu suddenly moved his hand swiftly in front of him.
When he looked with his original left eye, he saw a blur following the swift movement of his hand.
But when he looked with his right eye, the Time Residual Demon Pupil, he could see the rapidly moving hand clearly, every line and crease on the hand was visible, as if the hand had slowed down.
Especially as Zhang Yu focused more and more, the feeling of the world slowing down became increasingly clear.
At the same time, Zhang Yu could also feel the Time Residual Demon Pupil absorbing more of his mana to maintain operation.
Zhang Yu estimated silently, "The stronger the slowing effect, the more mana it consumes."
"Under the extreme slowing condition, the whole world appears to slow down tenfold in my eyes."
"And with my current mana, combined with the continuous mana recovery by the Qi Sea Spirit Root, I can probably maintain it for about an hour."
