Everfore is a Yo-kai with pale, fair skin and large black eyes with yellow irises accented by red makeup to match the diamond on her forehead. She wears her dark blue hair up in a traditional Japanese style based on the Geisha and adorns it with a single red bow and six gold pins. She wears a red kimono accented by tiny black, ivory, and orange flowers. A yellow cloth is also tied around her chest with white marks on it. She also has a staff that looks similar to the one Grumples carries, but this one sports a smiling face instead of a ghastly surprised face.
In the movie, she can release a powerful beam from her staff. She has the power to absorb the youth out of anyone she so desires.
The first Ageless Powder is obtained through the post-game request "Powder of Youth", received in Hungry Pass from Everfore herself. Once completed, additional Ageless Powder can then be obtained through Terror Time chests.
You can get Everfore fusing Grumples with an Ageless Powder, which can be obtained through the Oni Crank-A-Kai
In the anime
In the anime, after a training regime suggested by Toiletta in order to regain her youthfulness, Grumples rejuvenates into Everfore as a result. Everfore, out of gratitude, gives Nathan Adams her Yo-Kai Medal. However, not too long after that, Everfore sneezes and turns back into Grumples.
Everfore's Japanese name, "Oiran" (花魁, "leader of flowers", originally a contraction of oira no tokoro no nēsan, "my elder sister"), refers to the highest rank of courtesan during the Edo period, different from geisha. Aside from being women of pleasure, they were both skilled entertainers and fashionistas who wore lavish kimono and elaborate hairstyles, setting trends that survived even into modern times.
Everfore might be an alteration of the phrase forever more, referring to eternal youth.
"Oiran" has the above meaning, but is spelled O iran ("don't wanna be old").
"Belladona" is a combination of "Bella" (beautiful) and "Doña" (Mrs).