Kaō

was a powerful yōkai who fed on the sorrow of others, feeding their used bodies to the ground afterwards.

History
Inuyasha's group encountered Kaōsoon after Kikyō's death; he succeeded in placing Inuyasha in a trance, allowing him to weep all his sorrow over her death away. However, he was soon afterwards destroyed by Inuyasha in anger for using his feelings as food.

Physical description
He took the form of a noble man with dark, messy hair. He often carried a fan with him.

Powers & Abilities
Kaō's powers were shown to have been strong enough to cast his spell over an entire village. He'd been show to, literally, act in a kind and caring manner; this helps him put others in the trance his flowers create.

Trivia

 * In the English version of the manga, he is called "Flower Prince".

Kaō Kaō Kao 花皇