Mister Sandmeh

is a Rank B Earth-attribute Yo-kai of the Heartful tribe.

The Yo-kai Medallium bio reads; "A Sunao that grew up to be a serious office worker while keeping his honest disposition. His perfect bow exhudes such politeness, even enemies will instinctively return the gesture."

Sunao Oyama evolves from Sunao when fused with a Sand Suit. Additionally, as of Yo-kai Watch 3 Nandenaan evolves into Sonaandaa when fused with this Yo-kai.

Sunao
In the 2nd season of the Mr. Nyanpachi series, Sunao Oyama is the doting father of Sunao. He badgers Mr. Nyanpachi to take better care of his son during school time.