After playing for a bit I have to say the outfits seem... not implemented great? They only show up when Namu has her image pop up, which barely happens from my experience. And the fact that they don't show up in combat is also a bummer. A standing image could help this, but it just isn't great?
Game was otherwise alright, wished the other girls had a bit more content and costumes as well, but combat wasn't ridiculous and the art was pretty good.
6/10 overall (-2 for the costumes stuff and -2 for the side girl neglect)