Illoo (Japanese: まぼ老師 Maborōshi) is a is a Rank C Water-attribute Yo-kai of the Mysterious tribe.



Illoo has an elderly appearance with a brown skin, long eyebrows, and a thin, long beard. He wears a light brown colored kimono and above that a gray colored robe with yellow linings and a prominent hat-like section in the superior part. He also wears a collar of khaki-colored beads and a red charm in the center and carries a small wooden staff on his right hand.

Illoo is a jolly prankster. According to Whisper, he took third place in the Yo-kai-lympics.

Illoo is Alloo and Elloo's brother.

Illoo has the power to create illusions and hypnotize people.


Yo-kai Watch

Illoo appears under cars everywhere in Breezy Hills.

Yo-kai Watch 2

Illoo appears in trees and telephone poles in Harrisville.

Yo-kai Watch 3

Illoo appears in trees in Excellent Expressway.

Yo-kai Watch animation series

Illoo - Yo-Kai Watch Summoning

Illoo - Yo-Kai Watch Summoning

Illoo first appear in EP005, in which he makes illusions of some girls to make Bear and Eddie believe they are receiving chocolate for Valentine's Day. Nate soon realizes he is the only one not to receive chocolate and demands Illoo for that. Nate summons Jibanyan, but Illoo causes the cat Yo-kai to believe in eating chocolate bars, which actually was a playground structure. Nate then summons Manjimutt, but he also falls into the illusion into receiving chocolate from a lot of girls. Nate then resorts to defeating Illoo himself with a "Fire-Nate-Tornado" illusion of his, which works enough to have Illoo giving him his Yo-kai Medal, but not without Nate falling into an illusion of Katie giving him chocolate as well.

He is first summoned in EP008 and creates an illusion of urinals in the hallway at the time when the students were inspirited by Fidgephant.

In EP027, Illoo was seen in Yo-kai-lifornia where he was among the Yo-kai waiting in line for the release of the Yo-kai Watch Model Zero.

In EP039, he defeats Failian by creating an illusion of him leaving Earth with some aliens.

Game Data


Water Attribute
Maboroshi YW1-012
Fushigi medal
Level 30
Fire Attribute



Water Attribute
Maboroshi YW1-012
Fushigi medal
No Attribute





Maboroshi YW1-012
Stats Calculation
This shows Illoo's stat on level: 99.

Attribute tolerance

Fire icon Ice icon Earth icon Lightning icon Water icon Wind icon
- - - -
Tolerance of attribute attack
Strong × ⇒ △ ⇒ - ⇒ ○ ⇒ ◎ weak


Type Name Power Attribute Range
Attack Hit (Japanese: たたく Tataku) 10 Single enemy
No description.
Technique Rapids (Japanese: 水流の術 Suiryū no Jutsu) 50 Water Single enemy
No description.
Inspirit Illusion Power (Japanese: 幻の力) Single ally
Evelops ally in illusion, raising their SPR.
Soultimate Move Spirit Illusion (Japanese: ひとだま祭り・幻 Hitodama Matsuri - Maboroshi) 110 All enemies
Summons will-o'-the-wisps to damage enemies.
Skill Brother's Vow (Japanese: 兄弟のちかい Kyōdai no Chikai)
Stat boost to adjacent allies with the same skill.


  • Befriended: "Ho ho... That was quite the display! I've taken a shine to you."
  • Loafing: "I'm getting old..."
  • Receiving food (favourite): "Hoo, tasty!"
  • Receiving food (normal):
  • Receiving food (disliked):
  • Freed from Crank-a-kai: "Hoho! So It's not an illusion that I'm out? My thanks!"


  • "Illoo" is a corruption/contraction of the word illusion. It may also be combined with hoo, onomatopoeia for an owl's call.
  • "Maborōshi" is a play on words with maboroshi (Japanese: phantom, illusion; Kun'yomi method of pronounciation) and rōshi (Japanese: 老師 mentor, teacher).
  • "Illúho" derives from ilusión ("illusion") and "Búho" (Owl)


  • Illoo's "random" nicknames in Yo-kai Watch 2 are: Owlusion, Wallace, Browcloud, and Illusion.

In other languages

  • Japanese: まぼ老師 Maborōshi
  • Korean: 환상도사 Hwansangdosa
  • Spanish: Ilúho
  • German: Eulusionist (lt. Illoosionist)
  • Portuguese (Brazil): Ilu-hu
  • Italian: Illuguroo
  • Chinese: 魔幻老師 (HK) or 幻覺老師 (TW)
  • Arabic: وهام
  • French: Hiblusion
  • Russian: Иллюфлин Illyuflin