Unpleasant has an eerie elderly appearance, with a long beard and mustache going to his lower chest, with a long mane going to his lower back. He is the second tallest wicked yokai due to his horns, Unkeen is the tallest. He has dark gray skin like the other Wicked Executives, though the only visible skin is his left hand, as the face has a black shade, only showing his oval-shaped caramel eyes with red sclera. He also sports a pair of horns on the sides of his head. Like his peers, he follows the color scheme of the Wicked Clothing, with a dark purple robe which sports a lighter shade of purple on the leg section, with a milky pink layer of clothing underneath. He also carries a ebony black staff on his left hand and sports the trademark Wicked flame on top of his head.
Yo-kai Watch: Wibble Wobble
Unpleasant appears rarely on Stage 276 in Old Springdale, where he is befriendable.
Yo-kai Watch 2
In Psychic Specters he can be found and befriended through the quest Unpleasent: Origins, started on the 3rd Floor of Nocturne Hospital, which becomes available after clearing Directator's quest Tamer of Time, which can be started in the stage of Gera Gera Land.
In Psychic Specters, him and the other executives are befriendable. Unpleasent can be befriended by completing a quest on the 3rd floor of Nocturne Hospital. Which becomes available after clearing Directator's quest Tamer of Time, which can be started in the stage of Gera Gera Land.
Yo-kai Watch Busters
Unpleasant and the other executives can rarely be befriended as a reward for beating a story mission in Chapter 11.
Unpleasent can rarely be befriended as a reward for beating the Demon King in a boss battle.
Yo-kai Watch 3
Unpleasent can be befriended in the sidequest Babaa's Sukiyaki Prosperous Note,
Alternatively he can also be fought and befriended through a Gate of Whimsy,
He can also be freed from the Crank-a-kai with Black Coins and Super Black Coins,
He also can be obtained through a Busters T Dungeon in the 2.0 update
"Nankai" is a pun on "nankai" (Japanese: 何回,"unintelligible" or "esoteric"), with the latter kanji being replaced by "kai" (Japanese: 怪,"mysterious" or "strange"), which is a part of all Wicked Executives and Wicked Servants' names in Japanese.
"Unpleasant" is taken directly from the English word, and notably starts with "Un-", like all Wicked Executives' names in English.
"Inaguantablio" is a corruption of "Inaguantable" (unbearable).
Unpleasant is the only Wicked Executive who is absent from the American and European cover arts of Psychic Specters.