Mrs. Yasue Saitō (斎藤保江) from Sumida, Tokyo, Japan sadly has entered limbo, aged 112. 

She was born on July 17, 1913, and was last confirmed alive on January 1, 2026.

NOTE:

Saito-san, as I've discovered, resides (or is registered) in Yokoami-2-chōme (横網二丁目 (35/130 in documents)).

Firstly, she is also the only person in Sumida to reach 104 years of age between July 2 and October 1, 2017.

https://www.city.sumida.lg.jp/kuseijoho/sumida_info/population/nenreibetsu/ta30100020170404.files/mati-1saigotoH2907_s.pdf   (2017/7/1)

https://www.city.sumida.lg.jp/kuseijoho/sumida_info/population/nenreibetsu/ta30100020170404.files/mati-1saigotoH2910_s.pdf   (2017/10/1)

Secondly, for the entire period from October 1, 2017 to January 1, 2026, there was a one woman 104+ years old in Yokoami-2-chōme, and the value was never zero. Also, no one person in Yokoami-2-chōme has ever reached 104 years old.

https://www.city.sumida.lg.jp/kuseijoho/sumida_info/population/nenreibetsu/ta301000R0704.files/mati1saigoto8nen01_s.pdf   (2026/1/1) (51/78 in this document)

https://www.city.sumida.lg.jp/kuseijoho/sumida_info/population/nenreibetsu/ta30100R804.files/mati1saigoto8nen04_s.pdf   (2026/4/1) (51/78 in this document)