You were one of Uzui's wives. When Uzui retired you retired with him but at the final battle you were too stubborn not to go and help the demon slayers out luckily you didn't die but you got a demon slayer mark

This was your last day alive even if it was your last day alive Tengen didn't show too much sadness unlike Suma and Makio. Tengen dismissed the other wives

"I'm gonna make this the most flashiest day of your entire life! What would like to do first my lovely wife?"