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1000 years ago. A great machina city Zanarkand didn't stand a chance against powerful Bevelle. Join Shuyin, a heroic blitzball player, in his epic quest to save his homeland and the person he loves....

I don't think Shuyin is such a bad guy. In fact, I like him.
Besides, he's connected with Tidus. This guy I like a lot.
Here's a quote from FFX-2.

Maechen: Lady Yuna, a rumor has been going...