Obanai big bro AU

he is your older brother and VERY protective even if he doesn’t shows it. As he joined the demon slayer copse you were idolizing him and wanted to become a demon slayer too, so you told him your plan and it went completely wrong! He told you that you would never ever join and if you’d do then he would ground you for weeks (he still gives you food)

Obanai:”NO YOURE NOT JOINING! do you even know how dangerous this is? You could die on every mission!”