fall from grace: 눈 밖에 나다.

fall from grace: to cease to be held in favor, especially because of some wrong or foolish action.

He was the teacher's pet until he fell from grace by failing the history test.

[그는 역사 시험을 망쳐서 눈 밖에 나기까지 선생님의 귀여움을 받는 학생이었다.]

Mary was the favorite grandchild until she fell from grace by running away from home.

[Mary는 가출을 해서 눈 밖에 나기전까지 사랑받는/애지중지한 손녀였다.]