Webdefinition and role of the hashira in the demon slayer corps; Criteria and training required to become a hashira; Brief overview of each hashira. While almost every hashira. Webobanai iguro, the serpent hashira, is known for his guarded and harsh demeanor. Webthe backstories of the demon slayer hashira serve to not only reveal their individual complexities, but also emphasize the significant themes of perseverance,. Webobanai's past trauma fueled his determination to become a powerful hashira, using his unique serpent breathing style in combat. Webin the initial opening scenes of demon slayer season 4 we meet wind hashira, sanemi shinazugawa, and serpent hashira, obanai iguro, on a mission to. Webfueled by terror and a desperate will to survive, obanai finally escaped his captivity. The monstrous serpent demon pursued him until the flame hashira of the time. Webalso known as the serpent hashira, obanai is one of the demon slayer corps, which is a crucial part of the war against demons. The first visual detail that one can see in this.