@DailyBacka3 That's Ema threatening Midori. It's a strong indication that Ema is actually a yandere, rather than just an overbearing but well-intentioned girl. It's basically Ema saying "keep loving me, or you'll get hurt."
After reading this story earlier I went away thinking that it was a story of a girl who couldn't say no to anybody and just went with the flow.
But after reading it again, I now notice how in the last page Ema steps her foot into Midori's shoes and gets Midori to agree to stay with her whilst having that crazed look on her face.
Is Midori in an abusive relationship with Ema?
EDIT: Just saw Madcats comment. Goddamn, this story is dark.
It is not as dark as it seems, the last page the foot looks like this because Ema is sitting cross-legged.
The question is whether or not Ema knows that Midori does not want to be her girlfriend and that the reason for the stress is her fault and she ignores it saying that it is the fault of the abusive girls and of not having friends.
Something like Ema thinks "I saved you from those girls so you are now mine"