Jesus Christ, this is one of the most depressing Manga I've read in a while. I refuse to believe a female human being could have no friends in high school, or be that insanely awkward, as not to be able to talk to a cashier at a restaurant. Even the creepiest weirdest monstrosities in my high school had friends, male and female. It must be a Japan only thing. Ugh, honestly, I feel really bad for her, and I hope this gets less depressing.
The end of chapter 9.5 was kind of nice, in a weird way.