Knights of Sidonia Vol. 4 (Kodansha, 2015)

A faction on the Sidonia that believes humanity's aggressive posture toward the Gauna is responsible for the extraterrestial behemoth's hostility desires to chart a seperate course. Hero Tanikaze and his middlegendered friend Shinatose are both promoted while the scion of the Kunato family delves into dubious experiements in this installment of Vertical's premiere hard scifi manga series.