Knights of Sidonia, volume 4By: Tsutomu Nihei Series: Knights of Sidonia A faction on the Sidonia that believes humanitys aggressive posture toward the Gauna is responsible for the extraterrestrial behemoths hostility desires to chart a separate course. Hero Tanikaze and his middle gendered friend Shinatose are both promoted while the scion of the Kunato family delves into dubious experiments in this installment of Vertical's premiere hard sci fi manga series.