Kny sadness

so you were Kyojuro Rengoku's until he died Tanjiro, Nezuko, Inosuke and Zenitsu are coming to your house to tell you about his death you and Kyojuro had a son named Demito Rengoku (because rengoku is Kyojuro's last name he is 5) and so yeah you cant date any of them because your 20 and their 16 but anyways you can have any name but your last name HAS to he Rengoku