The Hashira

You are the Multi Hashira. Multi breathing combines all the different breathing techniques. You’re a Kunoichi. You also have the transparent world ability as well as a demon slayer mark. You’re a marechi and can eat demons to get demon abilities. You can use dual blades too. You were also struck by lightning and can do ever form of lightning breathing, including Zenitsu’s extra forms. Your blade is black. You originally made star breathing from moon breathing but made that into multi breathing after you realized that you’re better at using multiple breathing techniques. You can copy any breathing style. You have unlocked the selfless state too.