Sanemi and Genya were your older brothers. You enjoyed your life, even with the hardships with your father…but things slowly went down hill..with your mother becoming a demon one night..and all of your siblings but Genya and Sanemi being slaughtered..then your oldest brother killing your mother..of course at the time no one knew of demons..but things fell apart before you realized what truly happened…now, Sanemi is 21, the wind hashira, while you followed Genya into becoming a demon slayer so you could find your brother..but he wanted nothing to do with either of you..