The "Momotaro" name brings more questions about the world the longer I think about it
"Momotaro" translates to Peach Boy and is the name of Japanese hero who was born from a peach and went on a journey with his animal companions, a dog, monkey, and peasant to defeat the Oni who were raiding villages etc. While the present day, Momotaro don't have any modern day connections to peaches outside of him being their ancestors and that is even pushing it. Because if the mythical character ,Momotaro, is really their ancestor, it brings a lot into question. Like how did the myth of the Momotaro spread if (potentially) he doesn't have any connections to peaches? Depending on which version they go with, did the peach give their ancestor his powers? How could the animals talk? Do other supernatural creatures or yokai exist in this world? If he really is their ancestor, then how did the Momotaro ability spread? From what I remember, they don't mention that he slept around like they did with the One's ancestor?
Note: When I say depending on the version, it is because there are older Edo period versions were it says that the old couple who care for Momotaro ate a peach and it made them younger allowing for them to have a child.
Also, the animals aren't random they each mean something: the dog symbolizes loyalty, the monkey means cleverness, and the peasant symbolizes self-sacrificing courage
I know that this isn't the best or most coherent thought process but I wanted to bring this up to you all and sed what you think about it.