Yōkai in Japan represent supernatural beings, urban legends, myths and the like. They have had various names throughout history. For instance, in the ancient past it was difficult to distinguish the term kami from the term yōkai, while in subsequent periods they received names such as mononoke, oni along with others. Through Toriyama Sekien's illustrated encyclopedias, as well as many other works by various artists and folklorists, yōkai managed to survive centuries of the past and continue to develop in the pop culture of Japan. Mizuki Shigeru is credited for yōkai reaching Studio Ghibli. His GeGeGe no Kitarō series inspired many to continue incorporating supernatural beings of the past into the modern world. When it comes down to Studio Ghibli anime, Spirited Away, which is the main focus of this paper, gave space to yōkai such as yamauba, tsuchigumo and mizuchi to come back to life. Miyazaki introduces a ten-year-old girl Chihiro into the spirit world where she encounters things she doesn't understand, such as kamikakushi, which was once believed to represent the abduction of children by spirits. The second is the ikai, the spirit world in which Chihiro finds work at a bathhouse of the gods and encounters many unusual creatures such as Kaonashi, or yōkai nopperabō. Yōkai are an interesting topic of study due to their complexity, and this magical world continues to develop in the imagination of the Japanese.