Obanai Iguro, also known as the Serpent Hashira and is one of the most powerful Hashiras in the Demon Slayer series. Coming from an extremely tragic background and past, Obanai does not get along well ...

When Tanjiro enters the Ubuyashiki Mansion, Obanai bullies him along with Sanemi Shinazugawa, the Wind Hashira. So much so, that he shows callousness towards Tanjiro through his words and actions.

Sanemi is one of the older human characters ... If nothing else, her fighting style is captivating. Obanai Iguro is the Serpent Hashira, which is already indicative of just how powerful he is.