[From what Rikku knows in the brief time she knew Tsutha, it seems like the kind of promise she'd have Ferran make. And it's a good thing--he really can afford to share his burdens more. Especially with her. That's kind of the whole point of a bond.

So she listens, pulling her knees up to her chest as she does so.]

That explains why you don't talk about it much. I'm sure it's hard to deal with.

[She looks at the mask.]

Your guardian has something to do with it, doesn't he?