2019年７月20日。
内房線・袖ケ浦駅*1。
JR千葉駅*2。
*1:See also https://sumita-m.hatenadiary.com/entry/2020/06/11/101747
*2:See also https://sumita-m.hatenadiary.com/entry/20160824/1472005939 https://sumita-m.hatenadiary.com/entry/20160825/1472131811 https://sumita-m.hatenadiary.com/entry/20160907/1473235398 https://sumita-m.hatenadiary.com/entry/2020/04/10/152534