The Magical Revolution of the Reincarnated Princess and the Genius Young Lady, Vol. 4 (manga)

Cursed by a dragon and entrusted with its knowledge, Anisphia wishes to use the ancient creature-s wisdom to take her magicology to another level. In order to do that, she-ll need the help of an eccentric friend and co-researcher: the infamous Tilty Claret. But after enlisting Tilty-s and Euphyllia-s help with her most dangerous experiment to date, there remains another enigma for Anisphia to unravel-the true nature of the mysterious Lainie Cyan!