Well, I thought they were friends on my first read. Now? My yuri myopia must have gotten pretty bad for I see hearts surrounding them...Wow, such chemistry, I want to see them together, could be best friends, could be lovers, could be life companions (you know the person who you are not really romantically attracted to but choose to stay with them for your entire life?). I mean some relationships IRL are so complicated it is hard to put a label on them, so why not? Hina and Nanase deserve a happy ending xD
Also, can some kind souls please tell me what the title means?