First post was updated with the covers.
This is the cover of the young men's (seinen) novel magazine
The Sneaker:
The bishoujo on the cover looks really cute
gothic lolita (gothloli) style
could she be from Suzumiya Haruhi novel or maybe some other novel from the magazine >.< she's really cute, I hope she's from Suzumiya Haruhi novel, I want to see her in the anime