Shadow Knights

you are a boy,You posseses a long, spiky snow-white hair to blue-light tips that you keep on ponytail,you always wear a blindfold,you wear a black-octagonal-patterned nagagi kimono and black hakama pants tied with white cloth uwa-obi,You are a Demon slayer,you falls out into the portal and you lands on the floor,the sky was dark-cyan and foggy a bit,you see someone but 4 of them,you don't sense any hostile of them