In the fantasy world of Basilico, citizens of Potpouripolis are being threatened from dangerous magical beasts appearing from the deep woods surrounding the city. The ordinary high school catgirl Mulberry and the young female mage Tetri fight together against them to save the day. Yet, despite her position as a mage, Tetri never uses her magic during battles, or anywhere in front of people. One day, Mulberry wondered why the mage keeps her magic secret…