Korisenman

Long ago, the gods granted a few animals great powers... but not all those animals used their magical abilities for good! Senzou the Fox Spirit in particular grew too brash and arrogant, abusing his strength until he was imprisoned for his bad behavior.
After 300 years he's finally been released, but only on one condition — no more powers until he successfully helps a tanuki cub named Manpachi become an assistant to the gods. And so... Senzou the once-great Fox Spirit must now figure out how to be an actually-great babysitter to a mischievous little tanuki or risk being stuck without his powers forever!
(Source: Tokyopop)