Shin no Nakama Episode.0: Imadake Saikyou no Souryuu Kishi wa, Izure Musou no Imouto Yuusha wo Mamori Nuku

Born a swordsman of overwhelmingly high skill, Gideon Ragnason is the older brother of the ‘Hero’. He spent his days honing his skills to protect his sister, who would one day save humanity. Then, the day of calamity finally arrived. Their homeland was assaulted by the Demon King's army. Gideon, now