[Tasdern]

I think everyone is missing the implication that Kotonaha was pregnant and had an abortion. She recommended a “good doctor”. Latter, during the roof scene, she said how good he is and mentions that Sekai would have been able to see the baby on the monitor. This makes me believe that Kotonaha had been pregnant recently.

She also told Makoto that she wouldn’t be led astray again. I believe she was talking about the night of the festival when she chose someone else to have sex with because of her perceived loss of Makoto.