Prison School, Vol. 21

The Shadow Student Council vs. Official Student Council Shoulder Wars competition begins, and the losers' side must disband! Vastly outnumbered, Mari's odds of winning are long, even with a partially resurrected Meiko to bolster their forces. To save the Shadow Student Council (and his date with Chiyo), Kiyoshi must rise to the occasion, fighting the army Kate has amassed...by going full mast!