there's two serpent hashiras in the demon slayer corps

You are Obanai Iguro's big sibling, Idk2 Iguro, when both of you were little Obanai's mouth was cut and had to wear a mask and you had to wear an eye patch after losing and eye that day

Both of you didn't have a very good sibling relationship but only got along hardly, you both usually go on missions together and end up having little arguments

Obanai had a pet snake named Kaburamaru which was pale and had red eyes

There was a hashira meeting, Obanai was holding Tanjiro down while Sanemi was stabbing the box where Nezuko was in

Obanai 🐍 : he stays silent holding Tanjiro down with a lot of force preventing him from escaping