Grumples (Yo-Kai Watch)

Grumples appeared in 2013 video game called Yo-Kai Watch. Grumples (Japanese: しわくちゃん Shiwaku-chan) is a Rank B, Drain-attribute Yo-kai of the Eerie Tribe.

Grumples evolves into Everfore when fused with Ageless Powder.

Grumples resembles a rather elderly woman with wrinkled skin, sunken eyes and only two teeth on her upper mouth. She wears a ragged old cloak, which is patched in some areas and is accompanied by a green sash. She carries a wooden staff with a ghoulish face in the top.

In the anime she behaves like an old woman, matching her appearance, in that she has a lot of trouble hearing Nathan's complaints about her powers and showing signs of senility.

Grumples drains the youth (and possibly life-force) of whoever she inspirits, causing them to rapidly age, though the progression of their aging follows a natural course that includes causing children to grow up. She can return what she stole, but this typically requires forcing her to do so.

In the anime, Grumples has the additional ability to shrivel anything inanimate, and utilizes a beam from her staff to do so. When the beam is used on humans or other Yo-kai, they're instantly turned elderly, and, unlike the game, kids do not grow up, but instead simply become elderly versions of themselves. This effect can be undone with some special water carried by Toiletta.