From Hyper Parfait:

Nozaki Momiji hasn’t been designing clothes recently. Tani-sensei worries that Momiji might be in a slump, so she makes her student participate in a school fashion show against Momiji’s will.

Tani-sensei introduces to Momiji an upperclassman named Miyata. He’s a very attractive young man that he could make a girl drool with just a glance. He makes a wonderful model… However… he wears nothing but a muffler!

Now Momiji doesn’t only have to design clothes for him… she’ll also need to make him put something on!

Get it from here: http://omaris-sister.blogspot.com/2010/10/one-shot-hadaka-muffler.html