Maria drafted a simple proposal and then took it to Simon to discuss the benefits of this business venture.

"It's often said that money from women and children is the easiest to earn. Take me, for example—two-thirds of my monthly allowance goes toward skincare and cosmetics. Women who care about their appearance are willing to spare no expense for their face and body.

"Right now, many flowers are in full bloom. This year, we can start with small-scale production and then market these essential oils within the noble circles—preferably among the nobles in the capital. As long as we can prove their effectiveness, I believe the noblewomen will be more...