Mahou Shoujo Lyrical Nanoha A's Portable - The Gears of Destiny - Material Musume. - Vol. 2 Ch. 16.1 - Volume Extras

[MangaDex]

 

[GrowlShitty]

for extra context the pink extras were under the books actual cover so the joke with levi going through the hole was her ending up on the back of the book itself