Holder of the Duty bead. Sosuke also survived the fiery destruction of Otsuka Village. He did not have relatives and was raised with Shino and Hamaji as if they were siblings. He has a peony-shaped birthmark on the back of his neck. Ever since the accident that happened 5 years ago, he has an ability to transform into the dog Yoshiro. Sousuke has a very gentle and caring personality, and is more like a big-brother figure towards the childish Shino. This Sousuke in fact, possesses only half of the original Sousuke's soul. His other half, his 'shadow' Inukawa 'Ao' Sousuke, possesses things this Sousuke doesn't own. This Sousuke owns all the body parts, and a very little bit of memories, while Ao was missing some body parts, but owns most of their old memories and the 'warmth' of his hand, as stated by Kaho.