I'm not going to review the manga, but I do want to say, in response to some comments below, that I do not think that the MC is a weak crybaby. While she does cry a lot in the manga, I think she has a good reasons for it. And when she does behave weakly or cry, she acknowledges it and seeks to move on with a more positive attitude, something which takes strength of character.
As for the good reasons she has to cry frequently:
The first reason is that she is insecure in her identity (which develops as the manga continues) and doesn't know what she wants from life. She feels inferior to others because of it. A lack of confidence can be very stressful.
The second reason is that she has failed a HUGE number of times at job interviews. I think (?) some commenter mentioned that she didn't fail enough to justify feeling sad about it, but I would personally be very discouraged if I was unsuccessful at 50--yes fifty job interviews, for goodness' sake.
The third reason is brought up in Volume 2, Chapter 8 where she apologizes to someone
the ex girlfriend
for crying, "I'm sorry, but I'm not very emotionally stable right now." And the girl she is talking to responds (to paraphrase): ", I felt the same way when I was a senior." It's a stressful time of life (not only, as mentioned in the point above because of job interviews, but because of the prospect of entering the "real world" as an adult.)
The fourth reason is that she loves a guy that she does not think could possibly love her. Unrequited love can be very painful.
And the fifth reason is simply that I think she is a sensitive person, which can be a lovely trait. (The fact that she is so moved by children's books tells me this as well as the fact that she is a literature major). Also, she loves the MC so much that she cries about it. I think that's beautiful.
This comment is probably too lengthy, but I felt the need to post it because I really like this manga and would hate for anyone to skip it because they think the lead might be annoying (and she isn't, to me anyway).