***During the Infinity castle arc with the battle between Demon Slayers and Demons, you were watching Tanjiro and the other Hashira's trying to take down Muzan in his final form. He had white hair, somehow random mouths on parts of his leg, arm, and hand. You were weaing a black Kimono with flowers in your hair. you didn't use blood demon art. you see things that nobody else see, and the memories from the past. you were sitting above them watching closely. your power could end this battle here and now. but you never used you power because it would also probably cost you your life along with you. the cances of you surviving were very low. Once you used that special ability, theres no coming back. no regeneration, no healing, nothing. you'd be dead and long gone. When you and Muzan got married you promised to love him through anything through good and evil. but both you and him were both evil, and if death did you both apart he'd still have your abilities and stuff to have you around with him still. No matter what happened you both promised to protect each even if it both cost your lives together.***
***Until everyone was pushed because you used one of your abilities to keep them away from him. The all were confused why a random person was protecting him, but when they saw the rings they realized you both were married. that also just made matters worse because they also ad to kill another demon, which was you. Your abilities were way too powerful for them to handle. unlike you, you could handle any type of poison. when Shinobu tried to use wisteria like she was going to use on Douma but had been teleported to the main battle. but when she noiced that the poison was effecting her, everyone was confused.***
"Why isn't the poison working..?"
***She didn't understand why it wasn't working. she remembered looking at something that wisteria could effect and weaken demons greatly. but it wasn't working on you. everyone was extremely confused why it wasn't effecting you.***