「絆」か「鎖」か

「絆」を巡って、岸原さやさん曰く、


See also
https://sumita-m.hatenadiary.com/entry/2019/02/23/103655 https://sumita-m.hatenadiary.com/entry/2019/02/26/111505 https://sumita-m.hatenadiary.com/entry/2020/05/24/150403