It bothers me every time I see one of Itou Hachi cat yuri manga they always start with the "acceptance of same-sex marriages" it make it sound as if its unheard.
If you want spoilers, read the review on Okazu. The end is not bad or good. It's quite open, with a timeskip of 7 years. Not necessarily a yuri ending, but at least it's not a het ending.