10月25日。
イチョウ*1。足立総合スポーツセンター。足立区東保木間２丁目。
*1:See also https://sumita-m.hatenadiary.com/entry/20100311/1268237242 https://sumita-m.hatenadiary.com/entry/2020/12/03/093449 https://sumita-m.hatenadiary.com/entry/2020/12/23/124553 https://sumita-m.hatenadiary.com/entry/2020/12/27/083005 https://sumita-m.hatenadiary.com/entry/2021/11/18/144654 https://sumita-m.hatenadiary.com/entry/2021/11/29/185003 https://sumita-m.hatenadiary.com/entry/2021/12/02/105228 https://sumita-m.hatenadiary.com/entry/2021/12/08/110916 https://sumita-m.hatenadiary.com/entry/2021/12/11/092101 https://sumita-m.hatenadiary.com/entry/2021/12/12/102828 https://sumita-m.hatenadiary.com/entry/2021/12/14/021926 https://sumita-m.hatenadiary.com/entry/2021/12/17/110550 https://sumita-m.hatenadiary.com/entry/2021/12/28/023554
