Where do I buy the costume for Mash?

Noob question here. I did the quest to get the permit, but where do I go to buy the costume? Do I need to finish the main quest or something?

Haven’t done the quest yet, but I guess it’s where you enhance your Servants.

Edit: Yeah, go to Enhance and scroll all the way down. There you can find it.


Yep, under the “enhance” menu, at the bottom.