Ever since Meiko regressed to a childlike state, she has lost the monstrous strength that made her the ultimate jailer. But now, more than ever, Kiyoshi and Mari need to bring back the old Meiko. Can they revive the former Shadow Student Council vice president buried deep within and take down the Official Student Council? | Prison School Vol. 10 by Akira Hiramoto, Paperback | Indigo Chapters