2019年12月２日。
下北沢駅*1。
世田谷区北沢２丁目*2。
*1:See also https://sumita-m.hatenadiary.com/entry/20060908/1157680200 https://sumita-m.hatenadiary.com/entry/20150719/1437328367 https://sumita-m.hatenadiary.com/entry/2020/03/30/005942
*2:See also https://sumita-m.hatenadiary.com/entry/20060628/1151464867 https://sumita-m.hatenadiary.com/entry/20071003/1191425920 https://sumita-m.hatenadiary.com/entry/2020/03/30/005942