Yasue Okai was born on 25 November 1908 in Osaka Prefecture, Japan. After her marriage, she ran a button shop in Higashiosaka together with her husband Heizaburo. She had a bright and sociable personality, and she was active as a PTA officer at her children’s school. She was also the female head of temples and community events.
Okai was a good cook, so when she was at home, it was her pleasure to serve homemade sushi rolls and oden to her family and neighbors. Until the age of 105, she was well enough to walk around the neighborhood using a walker.
There has been a history of longevity in Okai’s family. Two or three of her sisters lived well into their 90s and 100s.
In November 2018, Okai celebrated her 110th birthday and became a supercentenarian.
Yasue Okai currently lives at a nursing home in Higashiosaka City, Osaka Prefecture, Japan, at the age of 114 years, 27 days, where she has lived since she was around 108.
Okai’s age was verified by Japan’s MHLW, Nobue Yoshida, Yu Li, and Yumi Yamamoto, and validated by the GRG on 18 October 2022.
She has been the oldest known living person in Higashiosaka since 2017. She is currently the fifth-oldest validated living person in Japan, after Fusa Tatsumi, Kahoru Furuya, Tomiko Itooka, and Kimiko Ono, as well as the third-oldest validated living person in Osaka Prefecture, after Tatsumi and Ono.