About this, can I know how get those suit? I try ask [Madam Morgaine], But she say nothing can tell me
This may become available as part of the story, once you've progressed far enough. Some of the components will be given to you by Selena herself when you visit the Dream World, and others can be found in L's shop. This can be determined by the suit's appearance in the tailor's catalog. See the images added by user Chin_Alancia.