Mythical Beasts: The Useless Lady Is a Genius! - Chapter 4

In a world dotted with World Entrances to a demon world, demons have invaded humans for centuries. Humanity has united and one of the most ancient sects in the world, the Archean Mountain Sect, has set up an entire education system in the form of Dao Academies and defenses at the World Entrances.

Master said, the woman I held in my hands, I must protect for the rest of my life.

Monica Everett, a genius magician, was extremely shy and terrible at speaking in public.

To that end, she worked hard and mastered the art of countless magic, which she could use without chanting. After being chosen as one of the Seven Sage at the tender age of fifteen as the “Silent Witch,” she lived a quiet life in the forest.

However, two years have passed since then, and one day, Monica received an order.

And it was to secretly protect the second prince to the academy undetected.

In order to protect the prince, Monica must infiltrate a glamorous school for the children of noble families.

“I don’t wanna do this… I’m scared… Ugh… My stomach is aching…”

…said the girl whimpering.

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

- Description from Novelupdates