When she was born, she had numerous wrinkles, a low nose, and small eyes, so her parents named her Hitomi (which uses the kanji for beauty) with the prayer that her facial features would become more pronounced.
Apart from sports, she started playing the piano around kindergarten, and when she was an elementary school student, she became interested in music after singing along to the record "Kuroneko no Tango" at home.
[2][4] At Miwa Junior High School, she was a member of the soft tennis club and played as a forward in doubles.
She learned about the Tokyo Music Academy Nagoya Branch through an advertisement in the city, passed the entrance exam and began attending in November 1975, her first year of high school.
[3] After her parents' gave her permission to follow her musical ambitions for 4 years, she joined Watanabe Productions and started working there.
During her dorm life, she often went bowling in Tachikawa on weekends with the two of them, as well as with two senior students who belonged to the duo The Lilies.
In 1982, "Purple Mystery", written by high school student Kawagoe Susumu and sung by Ishikawa, was chosen as the best song of the year on NHK General TV's "Your Melody", and was released as a single in February 1983 with some lyrics revised.
Seeking to break away from her idol image, she appeared in television dramas and published highly revealing gravure photos in magazine "GORO".
In 1987 (at the age of 27), Ishikawa starred in his first musical, "The Emperor's New Clothes", but was struck by severe dizziness during rehearsals less than a week before the performance.
After being released from the hospital, Hitomi’s contract with Watanabe Productions was terminated and she left the entertainment industry.
In March 1990, while visiting a hotel lounge for a newspaper interview, she encountered Kiyoshi Atsumi, who played Tora-san.
Since then, he has released a CD album with Japanese guitar ichigoichikai, and has also given lectures on AIDS and hepatitis, and has written a book about his battle with illness called "Let's Swim Together" ("Shueisha").
On the August 23, 2023, at broadcast of the TV Asahi program "Tetsuko's Room", she revealed that she has been battling Sjögren syndrome, a designated intractable disease, for the past 11 years.