Tōshū

Toshu is swordsmith who was forced by Ryujin,a humanoid dragon  wants to his sword's engry. fear own life Toshu spend time for repair sword as he witness the people get killed int the village. Ryujin put Toushu's right eye caused him madness. When Inuyasha came to fight Ryujin who was injured Toshu used Datsuki to pluged into Dragon Scale then fight with Inuyasha. he died when scales was increases on his body into ashes. he apprend in The Final act