Rest in peace 😢 

P.S. If, as claimed, he lived in Tokyo City, then the only ward where he could have lived is Bunkyo.

Chuo (the OLM is 107 years old and none 104-years-old men per January 1, 2019)

https://www.city.chuo.lg.jp/a0012/kusei/gaiyou/toukeidate/jinkou/kakutoshibetsu/tosi201901.html

Minato (none 102-years-old men (who was b. in 1914) per January 1, 2017)

https://www.toukei.metro.tokyo.lg.jp/juukiy/2017/jy17qa0603.xls

Bunkyo (There lived a just one man born in the first quarter of 1914. Also, since at least January 2018, the number of men over 104 in the ward has never been zero.)

https://www.city.bunkyo.lg.jp/b011/p006255/index.html

https://www.city.bunkyo.lg.jp/b011/p006256.html#nenreidanjyobetu

Taito (none 103-y.o. and elder men per July 1, 2020)

https://www.city.taito.lg.jp/kusei/shokai/tokei/setai/nenreibetsu/r02nen.html

Sumida (the OLM is 105 years old per September 1, 2023)

https://www.city.sumida.lg.jp/kuseijoho/kutyounoheya/photonews/0509.html

Arakawa (none 105-years-old men per January 1, 2023)

https://www.city.arakawa.tokyo.jp/a010/kunogaiyou/toukei/r5_01_nenrei.html

Meguro (the OLM is 104 years old (b. 1916.11 (駒場1丁目)) per January 1, 2021). Moreover, no man over 104 years old intered in limbo in August 2024.

https://www.city.meguro.tokyo.jp/koseki/kusei/gaiyou/nenreibetsuchoumoku_2020.html

https://www.city.meguro.tokyo.jp/koseki/kusei/gaiyou/nenbetsu_cho-r06.html

He passed away on August 21, 2024.

https://longeviquest.com/supercentenarian/anonymous-man-of-japan-1914/

The man's profile on LongeviQuest has already indicated the place of his death as the Bunkyo Ward. It turns out that my guess turned out to be correct.

May he RIP. 🙁