Board Thread:General Discussion/@comment-6192846-20151129184922/@comment-23.122.217.39-20151216161459

Momotaro was also found by an old couple who later named him, was also sent by heaven, and unlike Kaguya he went to a place called Onigashima because he felt he had a task to complete there (fighting demons). And in some regional variants, he's not found in a peach but a box.

I mean all we need is for Allen to befriend some animals along the way and we're set.

Aside from the moon thing (which I think is shaky at best) I'm not seeing any particular connections to Kaguya that aren't already covered by Momotaro. The two tales happen to be similar but that doesn't mean the other one is also being drawn from. Kaguya in particular ends up leading a vastly different life.

There might be more to suggest such a connection in the book but until we have that I see no reason to think any other tales are being drawn from but Momotaro.