Kyuta, a boy living in Shibuya, and Kumatetsu, a lonesome beast from Jutengai, an imaginary world. One day, Kyuta forays into the imaginary world and, as he's looking for his way back, meets Kumatetsu who becomes his spirit guide. That encounter leads them to many adventures.

In the quest for finding a deeper meaning to life, this is a true story of an American seeker who forsakes the worldly life to enter upon an amazing spiritual journey of self realisation.