Metis

Metis is a "child", or soul, that you can summon to fight your way through the world of Destiny Child.

Profile
Born from a wish to see inside other people's minds, this Child named herself after Metis, mother of Athena and goddess of wisdom. She speaks entirely in riddles and mysteries, making a conversation with her feel like deciphering a cryptic message from prophet. She sometimes goes out of her way to read minds and reveal her victims' embarrassing secrets. Because it is all too easy for her to tell what others are really thinking, she prefers the company of straightforward, simple-minded Childs.

Children
It should be noted that in this case, the use of "child" does not mean the character is a child. Like all the other summons in this game, "child" simply refers to the soul that is being summoned.