However, he had doubts about the teachings of Buddhism and he left home and the priesthood when he was 18 years old, and then he started to use the family name Fujiwara, which was the original surname of the Hino family.
だが、仏教の教えに疑問を抱いて18歳で家を飛び出して還俗、日野家の本姓である藤原氏を名乗った。