2021年３月７日。
千葉市幕張本郷６丁目*1。
幕張本郷７丁目*2。
*1:See also https://sumita-m.hatenadiary.com/entry/2020/02/18/094627 https://sumita-m.hatenadiary.com/entry/2020/11/10/014804 https://sumita-m.hatenadiary.com/entry/2021/07/03/114031 https://sumita-m.hatenadiary.com/entry/2021/11/16/095152 https://sumita-m.hatenadiary.com/entry/2021/11/20/165358 https://sumita-m.hatenadiary.com/entry/2021/12/23/105458
*2:See also https://sumita-m.hatenadiary.com/entry/2020/07/13/012606 https://sumita-m.hatenadiary.com/entry/2020/11/10/014804 https://sumita-m.hatenadiary.com/entry/2021/02/12/100711 https://sumita-m.hatenadiary.com/entry/2021/03/24/103559 https://sumita-m.hatenadiary.com/entry/2021/10/21/015012 https://sumita-m.hatenadiary.com/entry/2021/12/11/081728 https://sumita-m.hatenadiary.com/entry/2022/01/25/130757
