2020年３月９日。
船橋市三山２丁目*1／習志野市泉町2丁目*2。
*1:See also https://sumita-m.hatenadiary.com/entry/2020/03/10/022606 https://sumita-m.hatenadiary.com/entry/2020/07/22/134505 https://sumita-m.hatenadiary.com/entry/2020/08/27/022023 https://sumita-m.hatenadiary.com/entry/2020/12/19/102215 https://sumita-m.hatenadiary.com/entry/2021/02/13/142418 https://sumita-m.hatenadiary.com/entry/2021/03/12/095142
*2:See also https://sumita-m.hatenadiary.com/entry/2020/03/10/022606 https://sumita-m.hatenadiary.com/entry/2020/07/11/092525 https://sumita-m.hatenadiary.com/entry/2020/07/15/111420 https://sumita-m.hatenadiary.com/entry/2020/09/17/012308 https://sumita-m.hatenadiary.com/entry/2020/10/17/185518