A blue cat Yo-kai with a white chest, muzzle, and paw tips. His nose and inner-ear are dull pink and facial expression is in contrast from most of the Cat Yo-kai. At the center of his forehead is a white scar. He wears a dull gray belt which has a swirled sphere on it, and a long red cloth worn as a cloak.

Fuyunyan has a very righteous personality, doing what's right often and standing up for his friends. Fuyunyan is shown to be very patient, but after awhile he can lose focus of the task he is given. He is also very embarrassed about becoming Dekanyan. He is seen to act very childishly as seen in the movie when introducing the "Rewind Stone" and made his own sound effects. He has strange ways of doing normal things.

Fuyunyan has the ability to fly, and in the movie, throw balls of energy and coats his fists in it.

When Keita and Keizou borrow all the other Yo-kai's strength, Fuyunyan is transformed into his grittier, more powerful version, Darknyan.

(Source: Yo-Kai Watch Wiki)