Webon a functional level, the serpent plays a pivotal role in obanai’s combat style. The duo’s coordinated attacks showcase a harmonious yet deadly synergy, making them a formidable force against demonic adversaries. Webobanai's past trauma fueled his determination to become a powerful hashira, using his unique serpent breathing style in combat. Webafter being saved, shinjuro took obanai to his cousin, who berated him, telling him in a fit of rage that the snake demon killed all 50 members in the household. Although meaningless, the bitter words of obanai’s cousin struck a harsh chord with him and caused him to. Webobanai iguro (伊 (い) 黒 (ぐろ) 小 (お) 芭 (ば) 内 (ない) iguro obanai?) is a major supporting character of demon slayer: He is a demon slayer of the demon slayer corps and the current serpent hashira (蛇 (へび) 柱 (ばしら) hebi.
