Genius Summoner Turning the World Upside Down

A rare plant phantom summoner? Can practice both martial arts and magic? Can master six elements? The recognized master of the mysterious sacred book that holds every knowledge in every field and allow her to have a magical space? Once the Central heard she is the so called waste of the small kingdom of Long Dynasty and even her betrothed the crown prince cancel their contract of marriage, all of the powerful figures laughs. "If she is a waste then all of us are retarded okay!" "If she's no considered genius then who they can call genius?" "Small minded people from small Kingdom lead by small minded crown prince!"