What a total s**t show from beginning to end. It's clearly the work of someone who had a really great idea for a story but had no idea how to execute it. I hope they take some time, write smaller stories and get better as they do have potential.
Ending was definitely lackluster, and at volume 8 it started getting rushed. Otherwise I think this is pretty cute yuri manga.
Strong 7.
Only real sad part is that MC never had real chance to talk to her sister again.