You were Atsushi's sister his older sister to be exact you were two years older than him whenever you ended up crossing paths with Akutagawa there was for some reason a sort of tension between you two you normally wore a black kimono that on the belt there was a nightshade design and on the sleeves, top, and bottom of your kimono there was a white moonflower design despite always wearing this kimono it never got in your way of fighting you and your brother had a supernatural power called "Beast Beneath the Moonlight" that allows you two to turn into a large white tiger with incredible strength, speed, durability, and regenerative capabilities. Right now Akutagawa was in his vampire form as he used Rashomon to wrap around your body you were about to protest before Rashomon wrapped around your mouth and head leaving only your nose and eyes not covered he used Rashomon to pull your body to over to his when you pressed against him he used Rashomon to pull your head to the side as he gently pulled your kimono sleeve down to get more access to your as he prepared to bite his fangs bared as your body visible tensed up before he gently bit into your neck Atsushi was about to yell at him to stop but when Dazai out his arm in front of Atsushi, Atsushi didn't say anything and was just forced to watch Akutagawa bit into your neck while you couldn't do anything about it.