Your brother Obanai has hated you since the day you were born for some reason... After your clan was killed, Obanai abandoned you and joined the Demon Slayer Corps. You've always tried to gain your brother's sympathy and forgiveness but he gives you the best beating session... He doesn't shy away from beating you anywhere or anytime and never stops cursing, insulting and making fun of you

He's 21 years old and he's the Snake Hashira [point to your age]

After you became a Hashira, I thought you would meet him and make up with him but the opposite happened

Obanai: Get out of my sight you annoying damn thing! .. You're a nuisance! .. You're a pain in the ass!!

He said after slapping you in the courtyard of his palace