On the one hand, Kirigaya's sobbing face is sad to look at.
On the other hand, said face belongs to a person who's done the following:
- bullied Tadokoro all throughout junior high
- resumed bullying Tadokoro in high school
- made Tadokoro do errands (as evidenced by her silently threatening, "...or else you're gonna be my errand girl again!")
- made the poor girl cry!
- forced Tadokoro to lie and then laughed about it
- and finally, when confronted by Nikaidou, made piss-poor attempts at saving herself, even shifting blame onto others (including Tadokoro herself using the ol' "if they don't speak up it's their fault" excuse)
Kirigaya has absolutely zero redeeming traits. She's a bully and a coward.