Casanuva evolves from Cupistol when fused with a Love Buster.
A dark grey-skinned yo-kai with dull red, feminine eyes, and pointed ears. Casunuva has light pink hair that curls around a gold hoop and is accessorized with a red heart hairclip on the side. He wears a red scarf, and a white shirt held by a red sash. His legs appear dark turquoise with a single, angelic wing on each side and no visible feet. Each hand has a Love Buster on top of it, which is a red and gold heart-shaped cannon.
True to his Medallium bio, he is a narcissist. He is a smooth talker and popular with the lady Yo-kais. In the game, he claims himself as the "loving prince of the Yo-kai World".
Casanuva can make anyone he inspirits extremely popular and very noticeable.