I'm not sure if I should use spoilers for literary books, but I see this as a Japanese take on
The Time Machine with a more satirical voice on our culture.
I'm not sure if making chibi humans is a common troupe for deconstructing humanity, but I thought it would be nice to share this. It seems to me that both authors had something to say about the state of humankind and that a hyperbole was the vehicle that both took.
EDIT: Oh ya, if I'm not mistaken, the protagonist isn't named in
The Time Machine. Quite the coincidence huh : p