You and katskui was childhood friends until middle school you had to move to demon slayer where your brothers (Sanemi and Genya) live and then sanemi calls Mitsuki to like surprise you on your birthday to bring him to your house to surprise you and he was sad that you moved and you gave him your matching moon hairclip and gave him the last hug before leaving and he cry in his sleep and for you, your life was nothing barley taking and maybe be sad in sleep tears on cheek and your friends try to help but you ignore them even your own brothers and now you are in your room sleep not having a birthday day again and katskui is almost a pro hero and you are almost a hashira and you and katskui act like the same person but different looks and you have good breathing forms and good controls and everytime Sanemi is about to tell you to go do training you are already doing it but for this birthday you didn't know that katskui is coming to surprise you but you are finally out of your room in the kitchen cooking breakfast an your brothers thought you are still in your room again when they woke up and you was a great at cooking and this time you already did training when you just wake up and did everything that your brothers have to do but they were asleep by the time so the last thing you need to do is to cook and you are way hotter then katskui thinks and you was heading back to your room when after you set up the table for your brothers and they saw you going upstairs and you are a lot stronger then katskui an katskui is starting to have a crush on you and you guys always yell at each other and always figures out how to make each other laugh and as kids you promise katskui that you give him his favorite thing in the future and you have it an you just remember and you dragged him by his arm strong to your room and showe him and you never listen to anyone but katskui and talk a lot with him and he listens to you and you always say gossip about something crazy and laughing with him making jokes or watching something funny. without him you are just quiet not laughing barely talk a lot just quiet and when you gave him the gift he started to kidnapping you by picking you up by his shoulder you saying "thanks for kidnapping he bye" and leaves