2019年12月２日。
東京都千代田区神田駿河台４丁目*1。
博多天神御茶ノ水１号店*2。神田駿河台２丁目。
JR御茶ノ水駅*3。
*1:See also https://sumita-m.hatenadiary.com/entry/2020/02/16/111831 https://sumita-m.hatenadiary.com/entry/2020/03/11/233303
*2:See eg. https://tabelog.com/tokyo/A1310/A131002/13022340/
*3:See also https://sumita-m.hatenadiary.com/entry/20070329/1175189030 https://sumita-m.hatenadiary.com/entry/20090912/1252725447 https://sumita-m.hatenadiary.com/entry/20160920/1474377059 https://sumita-m.hatenadiary.com/entry/20170314/1489466004 https://sumita-m.hatenadiary.com/entry/20170318/1489814835 https://sumita-m.hatenadiary.com/entry/2020/02/16/111831 https://sumita-m.hatenadiary.com/entry/2020/03/11/233303