Kagami no Naka no Orgel - Hitotsume no Monogatari [Thumbelina]

What if fairy-tale Thumbelina was of normal size?
In the corner of a certain kingdom there was a woman who desperately wanted a child. But she did not know how to make a child, and her prayers to heavens were in vain. She came to a witch and received magic seed. A girl appeared from the grown flower. At first girl was only of thumb size, but she gradually increased to the height of an ordinary girl and started exploring the world.