Count Maria in. While she faced several of her demons about being a hostage/sacrifice in her canon, she still has the whole failing to properly defend her city thing hanging over her head and a rather nasty revenge complex against the nation that in her mind ruined her life.

Add to that that the biological control circuit for her robot is her mother (She doesn't know this) and the central computer is her father (she suspects this but has yet to confirm it) both who were killed by that nation and she'll fly off the handle at anything Solarian.