Winx club. The original season 1, volume 2, Defeating the Trix
"At the college of Alfea in the dimension of Magix, Bloom and her four best friends, Stella, Flora, Musa and Tecna, are studying very important lessons: they are all fairies and learning to master their magical powers! The heroines must maintain the balance between good and evil using their fairy skills, especially against their worst enemies the Trix"--Container.