Prison School manga volume 2 features story and art by Akira Hiramoto.

Will the hole in the wall that Kiyoshi and Gackt have been digging to aid in their prison break lead to a hole in Kiyoshi's heart instead?! The daring duo was prepared to risk it all to make Kiyoshi's sumo dream date with Chiyo happen, only to discover that the exit they'd been working so hard on was filled in by the Chairman?!

But that won't be enough to keep a hormonal teenage boy at bay! Kiyoshi, desperate to make this date a reality, escapes in disguise... as a girl!! But when Chiyo finds out, the date quickly devolves into a downward spiral! And to make matters worse, the vice president is about to discover Kiyoshi's little scheme too!