She in not a transfer student, and while she is not Momoko's classmate for as long as Shibumi, it is safe to assume she is of the same age and is in the same class for a long time. Why she is still using a junior uniform?

I think I saw this movie about a year ago, but I can't remember much of it and only watched part of it. It started off with this guy in hell, and he met this young boy and the boy said something like the guy had been lucky and had been given another chance in life to redeem himself. He then wak...