My Sister the Heroine, and I the Villainess - Chapter 12

Ian thought he was just a little wizard with a tiny bit of talent [cheat], and that hard work would make him stronger. However, as the story progresses, he gradually begins to discover that the teachers who have been teaching him magic are either once-famous strong individuals or characters mentioned in various legendary stories.“Standing before you is the noble apostle of the Misty Illusion Realm, the joint spokesperson of the Old Dead, and the designated successor by the founders of Hogwarts!”“What? That noseless freak wants to cause trouble? He must not have heard of my original magic spell that’s even recorded on the Chocolate Frog's famous collector's cards!”“Dumbledore Summoning Spell!”“Dumbledore Berserk Spell!”

This was a fragmented and disorganized world, this was a place that had been forgotten.

She, a 21st century mercenary queen, had crossed over into a tragically betrayed body of a waste. Waste? She will show them what it means to be a waste! Betrayed? With the Ancient Manual in her hands, she will astonish all the despicable men and cheap women!

Wait! Didn’t everyone say that she was an evil woman which everyone feared? Why is his Third Highness, full of mystery and charisma, so interested in her?

- Description from Novelupdates

“With your own strength, prove the worth of your species.”