There Are No Bad Young Ladies in This World

Read manhwa There Are No Bad Young Ladies in This World / 세상에 나쁜 영애는 없다 / Noble Lady Reformation Guide / All Noble Daughters Can Be Redeemed / There Are No Bad Girls in the World
[By the Author that brought you ! and By the Studio that brought you !]
Aristocratic young ladies are either rude and ill-mannered, or have nothing but flowers in their heads.
Even in an era when talk like that was aplenty, there was someone who taught them.
A commoner named Derrick realized he has talent for magic and made a name for himself as a mercenary. One day, he was invited to become the magic tutor for aristocratic young ladies.
Thanks to Derrick, the star lecturer who turns those rude young ladies into a “proper person,” prestigious noble houses start bombarding him with offers.
“There’s no such thing as a bad young lady in the world.”
At least, not in front of Derrick.