[She follows her in and to the men's section. Haruka did like to wear that more. Not that she was complaining. She rather liked it on her and Haruka made it work.
But she knows Haruka's style well enough that she can help pull items to make the shopping trip quicker. Michiru was the one who could spend hours shopping.]
And the even better part of it is that there is no currency to worry about.
[Which might explain why Michiru had so much in her closet...]