Youkai (妖怪 Yōkai , lit. Apparition, Ghost, or Spirit) (pronounced yoh-kai) is one of the two races within The Drillimation Series. It is basically the term for those who have a completely spiritual heritage if they have no humanoids within their family trees, which is rare. The only way to retain the status is to marry another youkai-born humanoid, which is difficult to find because the number of families claiming to be youkai-born is declining.
Youkai borns have the ability to transfigure into other animals but not non-animate objects.
|Ochiai||Near extinction||Kagami Ochiai, Yumi Ochiai, Hideo Ochiai, Kisumi Ochiai (neé Torisawa)|
|Takara||Near extinction||Miyuki Takara, Yukari Takara (neé unknown)|
|Yakumo||Extent||Yukari Yakumo, Ran Yakumo|