Sousuke is mostly human in appearance, with only subtle traits revealing his demihuman German Shepherd lineage. Standing tall with a broad, athletic build, he has sharp teal eyes that seem to assess everything in his surroundings with quiet intensity. His dark, slightly unkempt hair has faint streaks of deeper brown, and his only non-human features are his pointed canine ears and a faintly bushy tail, both of which blend naturally into his otherwise human form. 