Yup, the Ksitigarbha Bodhisattva, or Jizo is one of the more revered Bodhisattva in Japan. In Japanese folklore, Jizo hides the children in his robes to protect them from demons and guide them to salvation.
I've been there! Theyre not Buddhas though, theyre Jizo, they guide travelers on the right path and are more commonly known to guide the spirits of children or to protect sick children. They're the "child" monk