For a while there, I thought the ending was that the classmate was the comic writer and that the story that we've been reading the whole time was actually the comic being written. So after the whole incident in high school, they finally end up together.
That would've been quite the plot twist
woah that would have been SUCH a twist :O I don't know how to feel about it TvT since I grew attached to SunWha but dang great theory.
I was also thinking it was the teacher, but no he's just hella malnourished and sick ;-;
oh shoot aggghhh I'm so sorry
SPOILER
too late ;-;