Kizu was born in Japan on 5 February 1908. On 6 December 2019, aged 111, she became Chiba Prefecture’s oldest resident following the death of 113-year-old Motome Hirata.

Kizu died in Katsuura, Chiba, on 13 October 2020 at the age of 112 years, 251 days. She was succeeded as the oldest living person in the prefecture by a 111-year-old anonymous woman who lived in Tateyama.