Cage of Eden Vol. 16 (Kodansha, 2014)

Kokonoe's plan comes to fruition, allowing him and Ohmori to evade execution while also creating a diversion for Sengoku and his friends to escape the clutches of Nishikiori. As they make their way back to the others, Yarai reaches Nishikiori's camp where he comes to face the cold, hard truth about Kurususensei's condition. But seeing a chance to turn things in his favor, Nishikiori makes a deal with Yarai. Will Yarai go through with Nishikiori's dastardly request for the chance to save the life of his teacher? From the Trade Paperback edition.