2019年６月７日。
習志野市藤崎２丁目*1。
船橋市前原東１丁目*2。
*1:See also https://sumita-m.hatenadiary.com/entry/2020/01/10/160055 https://sumita-m.hatenadiary.com/entry/2020/02/15/083534 https://sumita-m.hatenadiary.com/entry/2020/03/18/081633 https://sumita-m.hatenadiary.com/entry/2020/03/31/160332 https://sumita-m.hatenadiary.com/entry/2020/05/05/132203
*2:See also https://sumita-m.hatenadiary.com/entry/2020/01/15/103151