Using magic tool: only 1 child
Using 'real' tool: 3 children

Imagine if Gran using the real one from the start...

The king’s tool is superior anyway

Magical tools, miracles, and accidental foods <<<<<<<< Using the real method of having children.

How the kids had been born :-

An - by vial
Duex - by magic biscuit
Trois & Quatre - by wearing magic dress
Cinq - by special Elixir
Six - by miracle flower bud
7,8,9 - by normal birth session

Now, to wait how for the 10th kid to been born later😌