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I would think Orphan, because he's literally born at the start of your fight with him.
- Sephiroth is 30, which is 6 years older than Kuja.
- That being said, I never thought Ultimecia was all that young either. Dialogue in Dissidia would suggest that she tries to look younger than she really is. I imagined Ultimecia was in her mid to late 30s.
- Youngest villain? That's either Orphan, as the poster above said (although Orphan existed since the beginning of time as a fetus), or even Kadaj, Yazoo and Loz who are all created days prior to the events of Advent Children, unless I'm mistaken. -- ∙ ∙ 02:16, April 14, 2013 (UTC)