４月５日。
港区六本木７丁目*1。
*1:See also https://sumita-m.hatenadiary.com/entry/2021/01/31/105544 https://sumita-m.hatenadiary.com/entry/2021/02/03/112225 https://sumita-m.hatenadiary.com/entry/2021/02/09/094920 https://sumita-m.hatenadiary.com/entry/2021/02/14/110037 https://sumita-m.hatenadiary.com/entry/2021/02/17/083654 https://sumita-m.hatenadiary.com/entry/2021/02/19/081437 https://sumita-m.hatenadiary.com/entry/2021/04/07/095502 https://sumita-m.hatenadiary.com/entry/2021/05/14/111138