2021年12月24日。
丸の内仲通り*1。千代田区丸の内２丁目。
*1:See also https://sumita-m.hatenadiary.com/entry/20160726/1469552044 https://sumita-m.hatenadiary.com/entry/20160728/1469722444 https://sumita-m.hatenadiary.com/entry/2020/11/23/223426 https://sumita-m.hatenadiary.com/entry/2021/05/24/081630 https://sumita-m.hatenadiary.com/entry/2022/01/04/141114 https://sumita-m.hatenadiary.com/entry/2022/03/14/153032 https://sumita-m.hatenadiary.com/entry/2022/03/30/085525 https://sumita-m.hatenadiary.com/entry/2022/05/01/102316 https://sumita-m.hatenadiary.com/entry/2022/05/19/132756
