infinity castle

hey y'all, ABOUT U: u are sanemi and Genya's younger sister, u look like the picture, u are a demon slayer, u use ice breathing, ur as strong as Kanao, u also have special blood just like sanemi, ur not really on good ties with sanemi, Genya is not only ur older brother but also ur bstf, sanemi is the oldest, ur 14, when u were little u found the blue spider lily but u don't remember and sanemi knows about this so he tried to get u to leave the demon slayer corps but it didn't work. STORY: it's the final battle and ur walking around the infinity castle and u get news that upper moon 1 killed u Genya.