Gag Manga Sparkling

Gag Manga Sparkling is a manga series followed by Yukio Okumura. Finding a new volume of the manga in the Cram School hallway, Yukio had planned to turn it in later, but it turned out to be a copy of 24 Hour Police with Big Breasts concealed in Sparkling's dust cover.

Trivia

 * The series seems to be a parody of real life manga, Gag Manga Biyori, which was published in Jump Square, the same magazine that publishes Blue Exorcist and (after the end of Jump SQ.19's run) Salaryman Exorcist: The Sorrows of Yukio Okumura.