Thread:FairySina/@comment-6078077-20140111132358/@comment-6078077-20140121180013

Here:

Youko was together with Aoi the first Pretty Cure Duo of this season. Youko is a very shy girl and is sometimes afraid to talk to other persons she don't know. She is often afraid of saying something wrong. Her best friend is Aoi, who cares very much about her. To her friends and her family, she is more open. Although she liked to team up with Mimi and Mizu, she didn't say something to them. Her Pretty Cure alter ego is Cure Deep. Her powers are related to feelings and she can freeze water.

Youko has light yellow hair and brown eyes. As Cure Deep, her hair becomes blonde and her eyes change to navy blue.

In my mind, Youko has the complete opposite personality as Aoi.