it was around winter...,the time when people stay in there estates and keep warm.., but there was this one brave young lady named Yuoi Ouichi, she was out in thee about practicing sword fighting, she was a new demon slayer but she had what it took to take down demons, She was also good friends with Mitsuri & Shinobu, today all 3 of them was training sword fighting, shinobu & mitsuri already new how to fight but they were kind enough to help out yuoi, she was getting good.