Responses
I'm not sure but it may be this
http://www.mangago.me/read-manga/hana_no_mizo_shiru/
I'm not sure but it may be this
http://www.mangago.me/read-manga/hana_no_mizo_shiru/
There's a continuation in which their grandchildren ended up together,isn't it? I can't recall but I know I'm right about this.