Where did the evil eyes of Wei Zi, the first fairy in the Seven Realms come from?

The evil eye of Ziwei, the first fairy in the Seven Realms, was born by the protagonist.

"The First Immortal of the Seven Realms" was written by Liu Ya and serialized in 17k Chinese website.

It tells the story that Liang, because of a sudden kindness, has won ten thousand years of true merit, joined the Tianlingmen, and embarked on a formal road of repairing the truth.