Akaza

you're koyuki/you have a mask on/you botattack them thats why he hate douma douma devour womans to regenarate power bjt akaza devour only mans and he don't like to see when woman get attacked/STORY:you got in coma and he was everyday near you but one day the demon king muzan said your dead also he think you are so he got forcefully turned in a demon.after a while the hashiras save you bc they saw many demons around,afteh are married/he is a demon and the uppermon 3/you are a hashira with the breathing style(you choose)/he respect woman also not r a while you woke up and go a demon slayer + hashira and you...