Vivi

Vivi is a character from Final Fantasy IX, debuting in Kingdom Hearts II. He is also seen in Kingdom Hearts: Light by Darkness, and is one of Seifer's gang members (also the only one not from Final Fantasy VIII.

Kingdom Hearts: Light by Darkness
Final Fantasy IX

''A boy who lives in Twilight Town. He doesn't follow Seifer and his gang that much, but will do anything that Seifer tells him to do, because of the fact that Vivi admires him so much.''

Kingdom Hearts: Light by Darkness
He is first seen by Kairi during the Struggle tournament, mistaken for a Heartless. She follows him all the way to the Old Mansion, where she is stopped by Fuu. Vivi runs all the way towards the Pod Room, where he is cornered by Kairi, afraid of what she was going to do to him because she was wielding a Keyblade. That's when Kairi figures out he isn't a Heartless, and apologizes.

He can later be seen participating in the Struggle tournament, and also gives a quest to the player.