Rydia. Lost her mom and her village at a very young age.

Gau. Mother died in childbirth giving birth to him, dad assumed that he was a monster and threw him into the wild. Grows up into a teen and finds dad again, finds out that father is mentally ill, but Gau believes that just knowing that his dad is okay is enough.

Cloud. Grew up as the towns misfit and thought that being like the war hero Sephiroth would get him loved and noticed. Failed to get into soldier and then lost his village and mum while Sephiroth burnt down and massacred his town. Attempted to injure Sephiroth, but Sephiroth stabbed him back. Woke up five years later after spending time in a experimental lab only to see his best friend be shot several times. Cloud then confuses his memories with Zack's due to being in a lab and trauma.

Quistis. I don't like her, but her crush "telling her to go speak to a wall ", is really rough.

Zidane. Garnet. Just Garnet. Garnet just goes through traumatic experience to traumatic experience.