Daija

is a snake demon who impersonated the Water God and asked for children sacrifices, while he held the real Water Goddess as his prisoner. One of child sacrifices was Suekichi, who takes the place of his best friend, Taromaru (who is the son of the village headman). When Inuyasha and the group find out Daija's secret and Daija tries to kill Kagome, Daija reveals his true form. Inuyasha defeats him with his sword.

Trivia

 * Another InuYasha character Orochidayū bears similar characteristics as Daija, including his appearance and outfits. The name of these two characters, Daija (大蛇) with Orochi (オロチ) respectively also having the same meaning, "serpent".