Darkyubi

is a Rank S Drain-attribute Rare Yo-kai of the Shady tribe.

Apperances

 * Yo-kai Watch: Main game series:
 * Yo-kai Watch 2: Befriending Yo-kai.
 * Yo-kai Watch Busters: Befriending Yo-kai.
 * Yo-kai Watch 3: Befriending Yo-kai.
 * Yo-kai Watch the Movie: The Great Adventure of the Flying Whale & the Double World, Nyan!: Major Yo-kai.

Biology
Darkyubi is an enhanced Kyubi with a darker coloration. He is a silver fox with very long, dark purple claws. He has pale violet eyes and light blue facial markings. His inner-ear is dark indigo and grape. His wrist, lower body, tips of tail, fur around the neck, and ear-tips are dark grey. Attached to the fur of his neck are four thin, long curled strands of milk-blue. He is seen holding a bright violet and indigo flame, versus the red flames that normal Kyubi weilds.

Yo-kai Watch 2
Darkyubi can only be befriended in Psychic Specters, and can be befriended with these steps:
 * 1) Complete multiple quests involving Whispocrates, Directator, and Dame Dedtime
 * 2) Head to the Sawayma Castle at night time, and head to the right side to find Darkyubi
 * 3) You may challenge him daily until you befriend him.

Yo-kai Watch: Wibble Wobble
Darkyubi could be freed from the Crank-a-kai as an event Yo-kai during a special period.

Yo-kai Watch Busters
Darkyubi can be freed from the Oni Crank-a-kai.

Yo-kai Sangokushi
Darkyubi, as Darkyubi Jun, can be freed from the Crank-a-kai with a Sawtoakushi (Wei) Coin

Yo-kai Watch 3
Darkyubi is exclusive to Sushi version and can be befriended with these steps:
 * 1) Clear Chapter 10, and have the helicopter with an S rank Watch, as well as clear the sidequests involving Kyubi and Awevil, the player must also have the diamond drill, and the melamella drill.
 * 2) Head to the Mt. Wildwood Cave and cross the cliff with the helicopter
 * 3) You must battle him inside the cave and if you win it will be an auto befriend.

Quotes

 * When being freed from the Crank-a-kai (Yo-kai Watch: Wibble Wobble):  "Heh heh heh... Your deep despair begins! You will regret summoning me."

Etymology
His Japanese name, "Yami Kyūbi", translates as "kyūbi of darkness". His English name, "Darkyubi", is a portmanteau of dark and Kyubi.

His Brazilian Portuguese name, "Trevoso" is combination of trevas (darkness) and the suffix "-oso", that means that something "-has a lot of".

In Other Languages

 * Italian: Kyubi Nero
 * Spanish: Oskyubi
 * French: Obskyurbi
 * Portuguese (Brazil): Trevoso