The 13 Days and the end is the only place where Vanille has importance.

Which is why I don't lik here. She's useless for 95% of the game!

Actually she also serves as the main motivation for FANG to fight & do what she did in the game.

As I said before. If the Plot had more relevance in Vanille&Fang, they might as well just made the game solely focused on Vanille&Fang. 

So, let me get this straight. For you to consider Vanille an useful character to the entire game, the entire focus should be put on her? 

It's strange on how your expectations for a character shift in conformity to how you like the character, Dtewi.

No, not the entire focus.

But look, you see the 25 hours between the 13 Days and end of the game.

I'd like Vanille to actually influence the plot even a LITTLE BIT during that time.

Ah but you see, she did affect the plot.

Or did you forget who was the one who gave a new spark of life to Sazh? Who gave him hope, even though it was her fault to begin with for his son to be crystallized? Or did chapter 6 and 8 just disappeared from your mind? 

Chapters 6 and 8 focused mainly on the characterization of Sazh.

Vanille helped to break Sazh out of his slump.

But, does that really affect the plot of the story?

This is getting ridiculous.

Each chapter focuses on the characterization of both character behind that chapter. So to you chapter 6 and 8 are special because Vanille is in them? Nevermind the fact that her characterization of how the guilt of her action weighed on her also took place. 

How does each individual characterization affects the story? Because, that's what happens in each chapter until chapter 10, characterizations that lead up to the realizations of chapter 10 and forward. 

Ummm, OK?

That's a bit of a stretch to how Vanille influences the plot you know.

Oh for crying out loud.

It's her actions that led to the entire situation of Sazh. 

It's her guilt that leads to the boiling point in chapter 8. "Shoot me" "You think I'd shoot you and everything would be sugar and rainbows" ring a bell?

It's these actions that lead to the sudden act of consciouness of Sazh that it wasn't Vanille's fault that Dajh became a L'Cie, but the Fal'Cie Kujata and that both of them were just pawns in the hands of the Fal'Cie

This realization led him to believe in the fight against the Fal'Cie and rejoin Lightning once more, which in turn lifted most of the guilt from Vanille's shoulders as well. 

How come this is any stretch? This is what happened in the game.