Rin shimiko is more quiet but hes a nice person, he will warm up slowly but in the mean time he would be a bit quiet and just do what hes trying to do as a demonslayer. He has a blind eye and tattoos around the eye to represent his anxiety and his eye he can see is a navy blue with a tint of green. Hes muscular and has scars on the top side shoulder and his chest. Could he possibly be your friend?