When you feel a difference in height or size... do you feel sexually aroused?
We call this "Anastimaphilia" or a sexual attraction to size difference.
The young potion maker "Arnoldus" lives in a large house on the edge of the village.
He has a kind sister "Artiana," and a cheerful younger sister "Valentinya."
They have a housekeeper named Shion as well.
One day, Arnie accidentally makes a potion that malfunctions and turns
both of his sisters gigantic, drastically changing their ordinary lives.
Coincidentally, new feelings began to sprout in Arnie...
Though he will be swayed by naughty feelings towards his sisters and housekeeper,
he will work hard every day to put together a potion to bring them back to normal.
As their feelings for each other strengthen, so do their bonds.
Gentle at times, and lewd at times.
We present an H heartfelt one-shota size-difference RPG.